More Related Content Similar to Series a-numeracy-ninjas-skill-book-answers-v5-apr-2016 (20) 1. Week 1 Session 1 Session 2 Session 3 Session 4 Session 5
Week 2 Session 1 Session 2 Session 3 Session 4 Session 5
Week 3 Session 1 Session 2 Session 3 Session 4 Session 5
Week 4 Session 1 Session 2 Session 3 Session 4 Session 5
Week 5 Session 1 Session 2 Session 3 Session 4 Session 5
Week 6 Session 1 Session 2 Session 3 Session 4 Session 5
Week 7 Session 1 Session 2 Session 3 Session 4 Session 5
Week 8 Session 1 Session 2 Session 3 Session 4 Session 5
Week 9 Session 1 Session 2 Session 3 Session 4 Session 5
Week 10 Session 1 Session 2 Session 3 Session 4 Session 5
Week 11 Session 1 Session 2 Session 3 Session 4 Session 5
Week 12 Session 1 Session 2 Session 3 Session 4 Session 5
Week 13 Session 1 Session 2 Session 3 Session 4 Session 5
Week 14 Session 1 Session 2 Session 3 Session 4 Session 5
Week 15 Session 1 Session 2 Session 3 Session 4 Session 5
Week 16 Session 1 Session 2 Session 3 Session 4 Session 5
Week 17 Session 1 Session 2 Session 3 Session 4 Session 5
Week 18 Session 1 Session 2 Session 3 Session 4 Session 5
Week 19 Session 1 Session 2 Session 3 Session 4 Session 5
Week 20 Session 1 Session 2 Session 3 Session 4 Session 5
Week 21 Session 1 Session 2 Session 3 Session 4 Session 5
Week 22 Session 1 Session 2 Session 3 Session 4 Session 5
Week 23 Session 1 Session 2 Session 3 Session 4 Session 5
Week 24 Session 1 Session 2 Session 3 Session 4 Session 5
Week 25 Session 1 Session 2 Session 3 Session 4 Session 5
Week 26 Session 1 Session 2 Session 3 Session 4 Session 5
Week 27 Session 1 Session 2 Session 3 Session 4 Session 5
Week 28 Session 1 Session 2 Session 3 Session 4 Session 5
Week 29 Session 1 Session 2 Session 3 Session 4 Session 5
Week 30 Session 1 Session 2 Session 3 Session 4 Session 5
Week 31 Session 1 Session 2 Session 3 Session 4 Session 5
Week 32 Session 1 Session 2 Session 3 Session 4 Session 5
Week 33 Session 1 Session 2 Session 3 Session 4 Session 5
Week 34 Session 1 Session 2 Session 3 Session 4 Session 5
Week 35 Session 1 Session 2 Session 3 Session 4 Session 5
Week 36 Session 1 Session 2 Session 3 Session 4 Session 5
Week 37 Session 1 Session 2 Session 3 Session 4 Session 5
Week 38 Session 1 Session 2 Session 3 Session 4 Session 5
Week 39 Session 1 Session 2 Session 3 Session 4 Session 5
Week 40 Session 1 Session 2 Session 3 Session 4 Session 5
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4. Week 1 Session 1
Mental Strategies Answers
Q Question Answer
1 2 + 3 5
2 89 + 11 100
3 What is half of 6? 3
4 125 − 10 115
5 177 + ☐ = 270 93
6 53 = 23 + ☐ 30
7 805 − 804 1
8 4 × 1 = 4, so 4 ÷ 4 = ☐ 1
9 Write 20:12 in 12 hour clock format 8:12 pm
10 9:37 pm is how many minutes after 9:08 pm? 29
5. Week 1 Session 1
Timestables Answers
Q Question Answer
1 2 × 9 = ☐ 18
2 24 ÷ 3 = ☐ 8
3 10 × ☐ = 80 8
4 6 ÷ ☐ = 3 2
5 1 × 2 = ☐ 2
6 28 ÷ 7 = ☐ 4
7 ☐ × 6 = 54 9
8 ☐ ÷ 2 = 5 10
9 3 × 9 = ☐ 27
10 4 ÷ 4 = ☐ 1
6. Week 1 Session 1
Key Skills Answers
Q Question Answer
1 61 × 31 1891
2 657 − 382 275
3 7.2 × 94.2 678.24
4 0.7 as a fraction 7/10
5 46.15 + 5.08 51.23
6 (−40) ÷ (−4) 10
7
If a = 4 b = 3 and c = 1, what is the value of
3a − b2
?
3
8 3 − (−5) 8
9
What is the highest common factor of 12 and
4?
4
10 What is the value of 13 squared? 169
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10. Week 1 Session 2
Mental Strategies Answers
Q Question Answer
1 ☐ + 4 = 5 1
2 38 + 62 100
3 What is half of 2? 1
4 128 − 10 118
5 120 + ☐ = 210 90
6 124 = 90 + ☐ 34
7 610 − 606 4
8 1 × 7 = 7, so 7 ÷ 1 = ☐ 7
9 Write 11:07 am in 24 hour clock format 11:07
10
From 3:01 am, how many minutes until 3:19
am?
18
11. Week 1 Session 2
Timestables Answers
Q Question Answer
1 2 × 9 = ☐ 18
2 30 ÷ 5 = ☐ 6
3 10 × ☐ = 100 10
4 54 ÷ ☐ = 6 9
5 10 × 7 = ☐ 70
6 40 ÷ 10 = ☐ 4
7 ☐ × 5 = 15 3
8 ☐ ÷ 8 = 8 64
9 5 × 1 = ☐ 5
10 24 ÷ 3 = ☐ 8
12. Week 1 Session 2
Key Skills Answers
Q Question Answer
1 81 × 98 7938
2 1596 − 837 759
3 9.1 × 13.13 119.483
4 20% as a fraction 20/100 or 1/5
5 4.98 + 15.59 20.57
6 (−18) ÷ 3 −6
7
If a = 7 b = 5 and c = 3, what is the value of
3b2
?
75
8 (−1) − (−4) 3
9 Is 2 a factor of 12? Yes
10 What is the positive value of √64? 8
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16. Week 1 Session 3
Mental Strategies Answers
Q Question Answer
1 3 + 2 5
2 63 + 37 100
3 Halve 7 3.5
4 151 − 10 141
5 42 + ☐ = 60 18
6 108 = 28 + ☐ 80
7 332 − 330 2
8 3 × 8 = 24, so 24 ÷ 8 = ☐ 3
9 Write 14:15 in 12 hour clock format 2:15 pm
10
From 9:16 am, how many minutes until 10:04
am?
48
17. Week 1 Session 3
Timestables Answers
Q Question Answer
1 3 × 4 = ☐ 12
2 24 ÷ 6 = ☐ 4
3 7 × ☐ = 70 10
4 9 ÷ ☐ = 1 9
5 9 × 5 = ☐ 45
6 4 ÷ 2 = ☐ 2
7 ☐ × 7 = 14 2
8 ☐ ÷ 6 = 8 48
9 10 × 2 = ☐ 20
10 5 ÷ 1 = ☐ 5
18. Week 1 Session 3
Key Skills Answers
Q Question Answer
1 6 × 725 4350
2 7614 − 5253 2361
3 6.1 × 3 18.3
4 0.86 = ☐% 86
5 57 + 2.34 59.34
6 56 ÷ (−8) −7
7
If a = 9 b = 10 and c = 5, what is the value of
2ab − c ?
175
8 (−2) − (−1) −1
9
What is the highest common factor of 23 and
20?
1
10 What is the value of (−6) squared? 36
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22. Week 1 Session 4
Mental Strategies Answers
Q Question Answer
1 2 + 3 5
2 ☐ + 65 = 100 35
3 What is half of 7? 3.5
4 140 − 10 130
5 145 + ☐ = 190 45
6 81 = 40 + ☐ 41
7 306 − 303 3
8 10 × 8 = 80, so 80 ÷ 10 = ☐ 8
9 Write 10:21 in 12 hour clock format 10:21 am
10
1:56 am is how many minutes after 12:59
am?
57
23. Week 1 Session 4
Timestables Answers
Q Question Answer
1 5 × 10 = ☐ 50
2 24 ÷ 3 = ☐ 8
3 2 × ☐ = 18 9
4 9 ÷ ☐ = 3 3
5 8 × 2 = ☐ 16
6 48 ÷ 8 = ☐ 6
7 ☐ × 7 = 49 7
8 ☐ ÷ 6 = 5 30
9 7 × 8 = ☐ 56
10 35 ÷ 7 = ☐ 5
24. Week 1 Session 4
Key Skills Answers
Q Question Answer
1 8 × 625 5000
2 731 − 367 364
3 7 × 9 63
4 1.02 = ☐% 102
5 1.15 + 20.33 21.48
6 (−48) ÷ (−8) 6
7
If a = 3 b = 8 and c = 5, what is the value of
(2b − a)2
?
169
8 4 − (−4) 8
9 Is 14 a factor of 33? No
10 What is the value of 142
? 196
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28. Week 1 Session 5
Mental Strategies Answers
Q Question Answer
1 1 + 4 5
2 19 + 81 100
3 Halve 2 1
4 42 − 10 32
5 124 + ☐ = 200 76
6 84 = 34 + ☐ 50
7 925 − 920 5
8 7 × 8 = 56, so 56 ÷ 7 = ☐ 8
9 Write 1:58 pm in 24 hour clock format 13:58
10 6:59 am is how many minutes after 6:19 am? 40
29. Week 1 Session 5
Timestables Answers
Q Question Answer
1 2 × 6 = ☐ 12
2 8 ÷ 2 = ☐ 4
3 1 × ☐ = 10 10
4 10 ÷ ☐ = 1 10
5 9 × 7 = ☐ 63
6 5 ÷ 5 = ☐ 1
7 ☐ × 8 = 72 9
8 ☐ ÷ 8 = 3 24
9 2 × 4 = ☐ 8
10 18 ÷ 6 = ☐ 3
30. Week 1 Session 5
Key Skills Answers
Q Question Answer
1 3 × 991 2973
2 16182 − 8764 7418
3 2.3 × 7.17 16.491
4 0.45 as a fraction 45/100 or 19/20
5 22.17 + 8.31 30.48
6 (−48) ÷ 6 −8
7
If a = 6 b = 3 and c = 10, what is the value of
bc / a ?
5
8 (−10) − (−5) −5
9
What is the highest common factor of 15 and
27?
3
10 What is the value of 7 squared? 49
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34. Week 2 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 6 = 10 4
2 What is double 5? 10
3 Halve 63 31.5
4 26 + 30 56
5 98 + 99 197
6 22 + 10 = 22 + 8 + ☐ 2
7 3 + 223 226
8 20 + 61 = 20 + 60 + ☐ 1
9 ☐ + 3 = 5 2
10 ☐ + 2 = 20 18
35. Week 2 Session 1
Timestables Answers
Q Question Answer
1 9 × 5 = ☐ 45
2 10 ÷ 2 = ☐ 5
3 8 × ☐ = 8 1
4 16 ÷ ☐ = 4 4
5 8 × 4 = ☐ 32
6 15 ÷ 3 = ☐ 5
7 ☐ × 2 = 12 6
8 ☐ ÷ 7 = 1 7
9 5 × 8 = ☐ 40
10 14 ÷ 2 = ☐ 7
36. Week 2 Session 1
Key Skills Answers
Q Question Answer
1 3905 ÷ 5 781
2 7 + 25 ÷ 5 12
3 2.013 ÷ 0.1 20.13
4 2.26 × 1000 2260
5 34 − 0.74 33.26
6 Write 56/72 in its simplest form 7/9
7 Difference between 4 and −4 8
8 See number line 6
9
What is the lowest common multiple of 4 and
5?
20
10 What is the cube root of 27? 3
0
1
2
3
4
5
0 10
Value of the dot?
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40. Week 2 Session 2
Mental Strategies Answers
Q Question Answer
1 6 + ☐ = 10 4
2 What is double 7? 14
3 Halve 31 15.5
4 103 + 60 163
5 76 + 77 153
6 43 + 9 = 43 + 7 + ☐ 2
7 5 + 142 147
8 95 + 13 = 90 + 10 + ☐ 8
9 3 + 2 5
10 3 + ☐ = 20 17
41. Week 2 Session 2
Timestables Answers
Q Question Answer
1 9 × 3 = ☐ 27
2 63 ÷ 9 = ☐ 7
3 10 × ☐ = 20 2
4 30 ÷ ☐ = 10 3
5 10 × 8 = ☐ 80
6 64 ÷ 8 = ☐ 8
7 ☐ × 2 = 16 8
8 ☐ ÷ 7 = 6 42
9 4 × 3 = ☐ 12
10 72 ÷ 9 = ☐ 8
42. Week 2 Session 2
Key Skills Answers
Q Question Answer
1 608 ÷ 4 152
2 1 + 4 × 2 9
3 42.4 ÷ 8 5.3
4 0.86 × 1000 860
5 27.39 − 2.59 24.8
6 Write 72/80 in its simplest form 9/10
7 Which is the lowest number, 2 or −10? −10
8 See number line 6
9
What is the lowest common multiple of 3 and
4?
12
10 What is the value of (−5) cubed? −125
0
1
2
3
4
5
0 30
Value of the dot?
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46. Week 2 Session 3
Mental Strategies Answers
Q Question Answer
1 8 + ☐ = 10 2
2 What is double 7? 14
3 What is half of 93? 46.5
4 12 + 10 22
5 14 + 13 27
6 49 + 10 = 49 + 1 + ☐ 9
7 4 + 926 930
8 57 + 50 = 50 + 50 + ☐ 7
9 2 + ☐ = 5 3
10 17 + 3 20
47. Week 2 Session 3
Timestables Answers
Q Question Answer
1 10 × 1 = ☐ 10
2 14 ÷ 7 = ☐ 2
3 6 × ☐ = 24 4
4 12 ÷ ☐ = 6 2
5 7 × 2 = ☐ 14
6 4 ÷ 2 = ☐ 2
7 ☐ × 7 = 21 3
8 ☐ ÷ 4 = 4 16
9 3 × 8 = ☐ 24
10 63 ÷ 7 = ☐ 9
48. Week 2 Session 3
Key Skills Answers
Q Question Answer
1 738 ÷ 9 82
2 1 + 4 ÷ 2 3
3 0.887 ÷ 0.1 8.87
4 1000 × 0.21 210
5 57.07 − 8.79 48.28
6 Write 9/54 in its simplest form 1/6
7 Difference between −7 and −3 4
8 See number line 0.7
9 List the first 4 multiples of 13 13, 26, 39, 52
10 What is the value of ∛64? 4
0
1
2
3
4
5
0 1
Value of the dot?
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52. Week 2 Session 4
Mental Strategies Answers
Q Question Answer
1 5 + ☐ = 10 5
2 Double 2 4
3 Halve 12 6
4 55 + 20 75
5 90 + 89 179
6 30 + 11 = 30 + 10 + ☐ 1
7 1 + 419 420
8 12 + 41 = 10 + 40 + ☐ 3
9 1 + 4 5
10 2 + 18 20
53. Week 2 Session 4
Timestables Answers
Q Question Answer
1 2 × 8 = ☐ 16
2 8 ÷ 2 = ☐ 4
3 5 × ☐ = 5 1
4 2 ÷ ☐ = 1 2
5 10 × 6 = ☐ 60
6 6 ÷ 3 = ☐ 2
7 ☐ × 4 = 16 4
8 ☐ ÷ 1 = 4 4
9 10 × 7 = ☐ 70
10 72 ÷ 9 = ☐ 8
54. Week 2 Session 4
Key Skills Answers
Q Question Answer
1 3267 ÷ 9 363
2 3 + 5 × 2 13
3 5.24 ÷ 0.2 26.2
4 0.66 × 1000 660
5 50.26 − 4.05 46.21
6 Write 5/15 in its simplest form 1/3
7 Difference between 9 and −10 19
8 See number line 4.25
9 Is 18 a multiple of 6? Yes
10 What is the value of (−3) cubed? −27
0
1
2
3
4
5
4 6
Value of the dot?
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58. Week 2 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 5 = 10 5
2 Double 3 6
3 Halve 35 17.5
4 173 + 50 223
5 47 + 44 91
6 32 + 10 = 32 + 8 + ☐ 2
7 1 + 566 567
8 40 + 68 = 40 + 60 + ☐ 8
9 3 + 2 5
10 4 + ☐ = 20 16
59. Week 2 Session 5
Timestables Answers
Q Question Answer
1 6 × 3 = ☐ 18
2 14 ÷ 2 = ☐ 7
3 6 × ☐ = 36 6
4 18 ÷ ☐ = 6 3
5 9 × 3 = ☐ 27
6 32 ÷ 8 = ☐ 4
7 ☐ × 4 = 24 6
8 ☐ ÷ 10 = 4 40
9 4 × 2 = ☐ 8
10 30 ÷ 3 = ☐ 10
60. Week 2 Session 5
Key Skills Answers
Q Question Answer
1 2688 ÷ 3 896
2 8 + 8 ÷ 2 12
3 245.52 ÷ 4 61.38
4 6.14 × 10 61.4
5 16.15 − 5.11 11.04
6 Write 63/70 in its simplest form 9/10
7 Which is the lowest number, 3 or −9? −9
8 See number line 45
9 List the first 4 multiples of 14 14, 28, 42, 56
10 What is the value of (−4) cubed? −64
0
1
2
3
4
5
25 75
Value of the dot?
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64. Week 3 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 13 = 20 7
2 Double 96 192
3 79 + 10 89
4 120 − 80 40
5 8 = 7 + ☐ 1
6 13 − 10 = 13 − 3 − ☐ 7
7 85 + 85 = 85 × ☐ 2
8 What is the time on the clock? 4:00 am
9 8 + 2 10
10 81 + ☐ = 100 19
65. Week 3 Session 1
Timestables Answers
Q Question Answer
1 6 × 6 = ☐ 36
2 3 ÷ 3 = ☐ 1
3 4 × ☐ = 32 8
4 4 ÷ ☐ = 4 1
5 5 × 4 = ☐ 20
6 45 ÷ 9 = ☐ 5
7 ☐ × 7 = 28 4
8 ☐ ÷ 6 = 9 54
9 4 × 5 = ☐ 20
10 48 ÷ 8 = ☐ 6
66. Week 3 Session 1
Key Skills Answers
Q Question Answer
1 2757 + 5432 8189
2 42
+ 2 × 4 24
3
Write Four Thousand, Three Hundred and
Twenty in digits
4320
4 5.94 ÷ 10 0.594
5 1 × (−8) −8
6 Round 0.7475 to 1 d.p. 0.7
7 1 + (−9) −8
8 Round 0.4559 to 2 s.f. 0.46
9 Letter at (−2, −2) V
10 10/1 = ☐/4 40
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70. Week 3 Session 2
Mental Strategies Answers
Q Question Answer
1 20 + ☐ = 20 0
2 Double 53 106
3 51 + 10 61
4 100 − 10 90
5 8 = 4 + ☐ 4
6 70 − 11 = 70 − 10 − ☐ 1
7 7 + 7 + 7 + 7 = ☐ × 7 4
8 What is the time on the clock? 3:20 pm
9 1 + ☐ = 10 9
10 66 + 34 100
71. Week 3 Session 2
Timestables Answers
Q Question Answer
1 2 × 3 = ☐ 6
2 7 ÷ 1 = ☐ 7
3 8 × ☐ = 80 10
4 16 ÷ ☐ = 4 4
5 9 × 5 = ☐ 45
6 35 ÷ 7 = ☐ 5
7 ☐ × 9 = 81 9
8 ☐ ÷ 10 = 2 20
9 8 × 2 = ☐ 16
10 63 ÷ 9 = ☐ 7
72. Week 3 Session 2
Key Skills Answers
Q Question Answer
1 271 + 8501 8772
2 (8 − 2)2
+ 3 × 4 48
3
Write 4335000 in words. (Use the opposite page
for your answer)
Four Million, Three
Hundred and Thirty
Five Thousand
4 0.8 ÷ 100 0.008
5 (−1) × (−9) 9
6 Round 61.9361 to 3 d.p. 61.936
7 (−7) + (−4) −11
8 Round 3096 to 1 s.f. 3000
9 Letter at (−1, 1) G
10 7/5 = 35/☐ 25
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76. Week 3 Session 3
Mental Strategies Answers
Q Question Answer
1 ☐ + 5 = 20 15
2 What is double 39? 78
3 65 + 10 75
4 179 − 10 169
5 6 = 2 + ☐ 4
6 12 − 6 = 12 − 2 − ☐ 4
7 86 = ☐ × 86 1
8
Draw hands on the clock face showing 4:45
pm
See clock above
9 ☐ + 8 = 10 2
10 57 + 43 100
77. Week 3 Session 3
Timestables Answers
Q Question Answer
1 2 × 6 = ☐ 12
2 24 ÷ 8 = ☐ 3
3 9 × ☐ = 81 9
4 18 ÷ ☐ = 6 3
5 4 × 6 = ☐ 24
6 6 ÷ 1 = ☐ 6
7 ☐ × 4 = 28 7
8 ☐ ÷ 6 = 2 12
9 8 × 2 = ☐ 16
10 5 ÷ 1 = ☐ 5
78. Week 3 Session 3
Key Skills Answers
Q Question Answer
1 32 + 211 243
2 32
+ 2 × 2 13
3
Write 6481504 in words. (Use the opposite page for
your answer)
Six Million, Four Hundred
and Eighty One
Thousand, Five Hundred
and Four
4 9.47 ÷ 10 0.947
5 (−8) × (−8) 64
6 Round 48.2994 to 3 d.p. 48.299
7 (−6) + (−10) −16
8 Round 34 to 3 s.f. 34.0
9 Letter at (−1, 1) G
10 4/2 = 8/☐ 4
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82. Week 3 Session 4
Mental Strategies Answers
Q Question Answer
1 13 + 7 20
2 Double 25 50
3 103 + 10 113
4 165 − 80 85
5 9 = 1 + ☐ 8
6 44 − 8 = 44 − 4 − ☐ 4
7 84 + 84 = 84 × ☐ 2
8 What is the time on the clock? 10:55 pm
9 2 + 8 10
10 ☐ + 83 = 100 17
83. Week 3 Session 4
Timestables Answers
Q Question Answer
1 2 × 10 = ☐ 20
2 4 ÷ 2 = ☐ 2
3 10 × ☐ = 50 5
4 63 ÷ ☐ = 9 7
5 5 × 7 = ☐ 35
6 6 ÷ 3 = ☐ 2
7 ☐ × 1 = 8 8
8 ☐ ÷ 8 = 9 72
9 7 × 7 = ☐ 49
10 80 ÷ 8 = ☐ 10
84. Week 3 Session 4
Key Skills Answers
Q Question Answer
1 4677 + 507 5184
2 (102 − 2) ÷ 10 10
3
Write 963206 in words. (Use the opposite
page for your answer)
Nine Hundred and
Sixty Three Thousand,
Two Hundred and Six
4 0.27 ÷ 10 0.027
5 2 × (−2) −4
6 Round 96.2442 to 2 d.p. 96.24
7 10 + (−10) 0
8 Round 0.1535 to 1 s.f. 0.2
9 Letter at (1, 1) I
10 10/10 = ☐/40 40
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88. Week 3 Session 5
Mental Strategies Answers
Q Question Answer
1 3 + 17 20
2 What is double 55? 110
3 112 + 10 122
4 29 − 10 19
5 6 = 1 + ☐ 5
6 58 − 11 = 58 − 8 − ☐ 3
7 73 + 73 = ☐ × 73 2
8
Draw hands on the clock face showing 10:10
am
See clock above
9 7 + 3 10
10 ☐ + 46 = 100 54
89. Week 3 Session 5
Timestables Answers
Q Question Answer
1 6 × 7 = ☐ 42
2 24 ÷ 4 = ☐ 6
3 4 × ☐ = 28 7
4 24 ÷ ☐ = 4 6
5 7 × 6 = ☐ 42
6 18 ÷ 6 = ☐ 3
7 ☐ × 4 = 4 1
8 ☐ ÷ 2 = 3 6
9 5 × 7 = ☐ 35
10 54 ÷ 6 = ☐ 9
90. Week 3 Session 5
Key Skills Answers
Q Question Answer
1 481 + 1429 1910
2 (9 − 5)2
+ 3 × 4 28
3 Write One Thousand and Thirty Two in digits 1032
4 0.35 ÷ 100 0.0035
5 (−6) × (−10) 60
6 Round 81.4358 to 2 d.p. 81.44
7 (−5) + (−5) −10
8 Round 21 to 2 s.f. 21
9 Letter at (0, −1) S
10 1/4 = 3/☐ 12
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94. Week 4 Session 1
Mental Strategies Answers
Q Question Answer
1 3 + 2 5
2 ☐ + 25 = 100 75
3 What is half of 8? 4
4 150 − 10 140
5 191 + ☐ = 210 19
6 97 = 60 + ☐ 37
7 135 − 132 3
8 5 × 8 = 40, so 40 ÷ 5 = ☐ 8
9 Write 20:11 in 12 hour clock format 8:11 pm
10 07:52 is how many minutes after 07:06? 46
95. Week 4 Session 1
Timestables Answers
Q Question Answer
1 2 × 7 = ☐ 14
2 6 ÷ 3 = ☐ 2
3 3 × ☐ = 21 7
4 56 ÷ ☐ = 8 7
5 10 × 9 = ☐ 90
6 30 ÷ 10 = ☐ 3
7 ☐ × 4 = 16 4
8 ☐ ÷ 9 = 6 54
9 10 × 8 = ☐ 80
10 90 ÷ 10 = ☐ 9
96. Week 4 Session 1
Key Skills Answers
Q Question Answer
1 What is 3/9 of 54? 18
2 964 × 9 8676
3 1444 − 982 462
4 3.2 × 8.25 26.4
5 8/10 as a decimal number 0.8
6 82.23 + 7.27 89.5
7 36 ÷ (−6) −6
8
If a = 1 b = 3 and c = 4, what is the value of
4b3
?
108
9 10 − (−9) 19
10 Is 5 a factor of 21? No
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100. Week 4 Session 2
Mental Strategies Answers
Q Question Answer
1 2 + ☐ = 5 3
2 54 + 46 100
3 Halve 6 3
4 184 − 10 174
5 91 + ☐ = 150 59
6 83 = 60 + ☐ 23
7 931 − 926 5
8 9 × 5 = 45, so 45 ÷ 5 = ☐ 9
9 Write 8:13 am in 24 hour clock format 08:13
10
From 2:46 am, how many minutes until 3:22
am?
36
101. Week 4 Session 2
Timestables Answers
Q Question Answer
1 10 × 10 = ☐ 100
2 8 ÷ 8 = ☐ 1
3 5 × ☐ = 40 8
4 20 ÷ ☐ = 5 4
5 9 × 8 = ☐ 72
6 80 ÷ 8 = ☐ 10
7 ☐ × 6 = 18 3
8 ☐ ÷ 7 = 10 70
9 2 × 8 = ☐ 16
10 12 ÷ 6 = ☐ 2
102. Week 4 Session 2
Key Skills Answers
Q Question Answer
1 What is 1/3 of 12? 4
2 6 × 225 1350
3 6543 − 5498 1045
4 9.8 × 4.8 47.04
5 100% as a decimal number 1
6 1.23 + 46.27 47.5
7 (−24) ÷ (−3) 8
8
If a = 7 b = 7 and c = 2, what is the value of
ac / 2b ?
1
9 (−3) − (−7) 4
10
What is the highest common factor of 23 and
20?
1
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106. Week 4 Session 3
Mental Strategies Answers
Q Question Answer
1 2 + ☐ = 5 3
2 4 + 96 100
3 What is half of 3? 1.5
4 80 − 10 70
5 40 + ☐ = 130 90
6 81 = 70 + ☐ 11
7 722 − 719 3
8 6 × 2 = 12, so 12 ÷ 6 = ☐ 2
9 Write 5:56 pm in 24 hour clock format 17:56
10
From 8:13 am, how many minutes until 9:13
am?
60
107. Week 4 Session 3
Timestables Answers
Q Question Answer
1 5 × 3 = ☐ 15
2 49 ÷ 7 = ☐ 7
3 8 × ☐ = 64 8
4 5 ÷ ☐ = 5 1
5 10 × 8 = ☐ 80
6 12 ÷ 6 = ☐ 2
7 ☐ × 9 = 54 6
8 ☐ ÷ 7 = 7 49
9 7 × 6 = ☐ 42
10 7 ÷ 7 = ☐ 1
108. Week 4 Session 3
Key Skills Answers
Q Question Answer
1 What is 5/7 of 63? 45
2 7 × 498 3486
3 15939 − 9001 6938
4 6.63 × 7 46.41
5 89.9% as a decimal number 0.899
6 85.83 + 9.4 95.23
7 (−30) ÷ (−10) 3
8
If a = 8 b = 7 and c = 7, what is the value of
∛a + bc ?
51
9 (−10) − (−6) −4
10
What is the highest common factor of 8 and
2?
2
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112. Week 4 Session 4
Mental Strategies Answers
Q Question Answer
1 3 + 2 5
2 ☐ + 80 = 100 20
3 What is half of 4? 2
4 84 − 10 74
5 122 + ☐ = 200 78
6 82 = 12 + ☐ 70
7 588 − 585 3
8 8 × 9 = 72, so 72 ÷ 8 = ☐ 9
9 Write 05:53 in 12 hour clock format 5:53 am
10 1:46 pm is how many minutes after 1:30 pm? 16
113. Week 4 Session 4
Timestables Answers
Q Question Answer
1 5 × 10 = ☐ 50
2 42 ÷ 6 = ☐ 7
3 8 × ☐ = 24 3
4 10 ÷ ☐ = 1 10
5 8 × 9 = ☐ 72
6 8 ÷ 8 = ☐ 1
7 ☐ × 4 = 16 4
8 ☐ ÷ 7 = 7 49
9 1 × 9 = ☐ 9
10 70 ÷ 10 = ☐ 7
114. Week 4 Session 4
Key Skills Answers
Q Question Answer
1 What is 4/10 of 20? 8
2 489 × 5 2445
3 14704 − 8633 6071
4 6.1 × 80.09 488.549
5 70% as a fraction 70/100 or 7/10
6 0.41 + 61.21 61.62
7 (−40) ÷ (−5) 8
8
If a = 6 b = 6 and c = 10, what is the value of
2abc − c2 620
9 (−6) − (−6) 0
10 Is 7 a factor of 24? No
117. Click the logo to begin
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118. Week 4 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 3 = 5 2
2 68 + ☐ = 100 32
3 What is half of 4? 2
4 189 − 10 179
5 161 + ☐ = 240 79
6 74 = 24 + ☐ 50
7 629 − 627 2
8 9 × 5 = 45, so 45 ÷ 9 = ☐ 5
9 Write 8:23 am in 24 hour clock format 08:23
10 2:15 pm is how many minutes after 2:05 pm? 10
119. Week 4 Session 5
Timestables Answers
Q Question Answer
1 5 × 1 = ☐ 5
2 24 ÷ 8 = ☐ 3
3 5 × ☐ = 30 6
4 45 ÷ ☐ = 9 5
5 6 × 1 = ☐ 6
6 40 ÷ 4 = ☐ 10
7 ☐ × 1 = 10 10
8 ☐ ÷ 3 = 9 27
9 6 × 4 = ☐ 24
10 2 ÷ 2 = ☐ 1
120. Week 4 Session 5
Key Skills Answers
Q Question Answer
1 What is 4/6 of 30? 20
2 3 × 911 2733
3 16071 − 8966 7105
4 6.9 × 5.85 40.365
5 8/10 as a decimal number 0.8
6 23.8 + 0.55 24.35
7 (−18) ÷ 9 −2
8
If a = 6 b = 8 and c = 4, what is the value of
(2b/c)2 16
9 (−1) − (−3) 2
10 Is 1 a factor of 3? Yes
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124. Week 5 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 9 = 10 1
2 What is double 6? 12
3 Halve 24 12
4 143 + 60 203
5 94 + 97 191
6 41 + 10 = 41 + 9 + ☐ 1
7 1 + 700 701
8 31 + 47 = 30 + 40 + ☐ 8
9 What is double 56? 112
10 What is half of 4? 2
125. Week 5 Session 1
Timestables Answers
Q Question Answer
1 7 × 10 = ☐ 70
2 21 ÷ 3 = ☐ 7
3 3 × ☐ = 18 6
4 5 ÷ ☐ = 1 5
5 1 × 2 = ☐ 2
6 30 ÷ 3 = ☐ 10
7 ☐ × 2 = 8 4
8 ☐ ÷ 3 = 6 18
9 3 × 6 = ☐ 18
10 63 ÷ 7 = ☐ 9
126. Week 5 Session 1
Key Skills Answers
Q Question Answer
1 What is 25% of £190? £47.50
2 6146 ÷ 7 878
3 4 + 5 × 1 9
4 462.2 ÷ 5 92.44
5 1000 × 0.64 640
6 69.12 − 9.2 59.92
7 Write 35/49 in its simplest form 5/7
8 10 − 10 0
9 See number line 13
10
What is the lowest common multiple of 6 and
8?
24
0
1
2
3
4
5
12 15
Value of the dot?
129. Click the logo to begin
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130. Week 5 Session 2
Mental Strategies Answers
Q Question Answer
1 ☐ + 5 = 10 5
2 What is double 7? 14
3 Halve 57 28.5
4 93 + 30 123
5 82 + 84 166
6 87 + 11 = 87 + 3 + ☐ 8
7 1 + 487 488
8 14 + 40 = 14 + 40 + ☐ 0
9 What is double 79? 158
10 What is half of 7? 3.5
131. Week 5 Session 2
Timestables Answers
Q Question Answer
1 2 × 2 = ☐ 4
2 9 ÷ 3 = ☐ 3
3 8 × ☐ = 16 2
4 35 ÷ ☐ = 5 7
5 2 × 1 = ☐ 2
6 10 ÷ 2 = ☐ 5
7 ☐ × 6 = 48 8
8 ☐ ÷ 8 = 6 48
9 9 × 3 = ☐ 27
10 70 ÷ 7 = ☐ 10
132. Week 5 Session 2
Key Skills Answers
Q Question Answer
1 What is 45% of £140? £63
2 3996 ÷ 4 999
3 5 + 10 × 3 35
4 7.474 ÷ 0.2 37.37
5 0.939 × 1000 939
6 96.54 − 8.01 88.53
7 Simplify 2/18 1/9
8 Difference between −10 and 9 19
9 See number line 15
10
What is the lowest common multiple of 7 and
8?
56
0
1
2
3
4
5
0 20
Value of the dot?
135. Click the logo to begin
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136. Week 5 Session 3
Mental Strategies Answers
Q Question Answer
1 9 + 1 10
2 What is double 3? 6
3 Halve 94 47
4 44 + 40 84
5 20 + 23 43
6 83 + 10 = 83 + 7 + ☐ 3
7 5 + 695 700
8 46 + 56 = 40 + 50 + ☐ 12
9 Double 25 50
10 What is half of 5? 2.5
137. Week 5 Session 3
Timestables Answers
Q Question Answer
1 10 × 10 = ☐ 100
2 28 ÷ 7 = ☐ 4
3 8 × ☐ = 16 2
4 40 ÷ ☐ = 4 10
5 7 × 1 = ☐ 7
6 56 ÷ 8 = ☐ 7
7 ☐ × 8 = 32 4
8 ☐ ÷ 4 = 9 36
9 9 × 2 = ☐ 18
10 6 ÷ 1 = ☐ 6
138. Week 5 Session 3
Key Skills Answers
Q Question Answer
1 What is 10% of £200? £20
2 1386 ÷ 3 462
3 8 + 2 ÷ 1 10
4 47.915 ÷ 0.5 95.83
5 100 × 88.255 8825.5
6 51 − 1.02 49.98
7 Write 9/18 in its simplest form 1/2
8 Which is the lowest number, −7 or −4? −7
9 See number line 7.5
10
What is the lowest common multiple of 5 and
6?
30
0
1
2
3
4
5
0 20
Value of the dot?
141. Click the logo to begin
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142. Week 5 Session 4
Mental Strategies Answers
Q Question Answer
1 ☐ + 5 = 10 5
2 Double 9 18
3 What is half of 59? 29.5
4 71 + 60 131
5 98 + 99 197
6 73 + 8 = 73 + 7 + ☐ 1
7 5 + 712 717
8 25 + 60 = 20 + 60 + ☐ 5
9 What is double 40? 80
10 Halve 3 1.5
143. Week 5 Session 4
Timestables Answers
Q Question Answer
1 3 × 7 = ☐ 21
2 80 ÷ 10 = ☐ 8
3 3 × ☐ = 15 5
4 4 ÷ ☐ = 1 4
5 8 × 6 = ☐ 48
6 40 ÷ 4 = ☐ 10
7 ☐ × 8 = 8 1
8 ☐ ÷ 10 = 9 90
9 2 × 2 = ☐ 4
10 2 ÷ 2 = ☐ 1
144. Week 5 Session 4
Key Skills Answers
Q Question Answer
1 What is 5% of £100? £5
2 5292 ÷ 7 756
3 90 − 4 ÷ 4 89
4 15.22 ÷ 0.2 76.1
5 6.16 × 100 616
6 32.68 − 3.54 29.14
7 Write 24/80 in its simplest form 3/10
8 Difference between 6 and −3 9
9 See number line 12.5
10 List the first 4 multiples of 12 12, 24, 36, 48
0
1
2
3
4
5
12 15
Value of the dot?
147. Click the logo to begin
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148. Week 5 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 7 = 10 3
2 What is double 9? 18
3 Halve 40 20
4 111 + 30 141
5 66 + 63 129
6 17 + 9 = 17 + 3 + ☐ 6
7 3 + 468 471
8 33 + 70 = 30 + 70 + ☐ 3
9 Double 58 116
10 What is half of 7? 3.5
149. Week 5 Session 5
Timestables Answers
Q Question Answer
1 6 × 2 = ☐ 12
2 36 ÷ 6 = ☐ 6
3 5 × ☐ = 15 3
4 56 ÷ ☐ = 7 8
5 3 × 9 = ☐ 27
6 5 ÷ 5 = ☐ 1
7 ☐ × 9 = 9 1
8 ☐ ÷ 6 = 3 18
9 8 × 3 = ☐ 24
10 18 ÷ 3 = ☐ 6
150. Week 5 Session 5
Key Skills Answers
Q Question Answer
1 What is 125% of £150? £187.50
2 1710 ÷ 5 342
3 85 − 15 ÷ 5 82
4 28.82 ÷ 0.5 57.64
5 71.204 × 100 7120.4
6 25 − 1.33 23.67
7 Simplify 6/60 1/10
8 Which is the lowest number, −4 or −3? −4
9 See number line 0.6
10 List the first 4 multiples of 11 11, 22, 33, 44
0
1
2
3
4
5
0 2.1
Value of the dot?
153. Click the logo to begin
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154. Week 6 Session 1
Mental Strategies Answers
Q Question Answer
1 17 + ☐ = 20 3
2 What is double 36? 72
3 89 + 10 99
4 143 − 20 123
5 5 = 4 + ☐ 1
6 14 − 7 = 14 − 4 − ☐ 3
7 56 + 56 = ☐ × 56 2
8
Draw hands on the clock face showing 7:05
pm
See clock above
9 What is double 9? 18
10 Halve 48 24
155. Week 6 Session 1
Timestables Answers
Q Question Answer
1 5 × 10 = ☐ 50
2 18 ÷ 6 = ☐ 3
3 9 × ☐ = 63 7
4 32 ÷ ☐ = 4 8
5 5 × 9 = ☐ 45
6 3 ÷ 3 = ☐ 1
7 ☐ × 3 = 24 8
8 ☐ ÷ 3 = 10 30
9 1 × 3 = ☐ 3
10 10 ÷ 5 = ☐ 2
156. Week 6 Session 1
Key Skills Answers
Q Question Answer
1 What is the value of (−15) squared? 225
2 986 + 3175 4161
3 √64 + 8 ÷ 8 9
4
Write 780026 in words. (Use the opposite page
for your answer)
Seven Hundred and
Eighty Thousand and
Twenty Six
5 13.089 ÷ 1000 0.013089
6 (−1) × (−6) 6
7 Round 6.5254 to 2 d.p. 6.53
8 10 + (−5) 5
9 Round 0.006435 to 1 s.f. 0.006
10 Letter at (−2, −2) V
159. Click the logo to begin
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160. Week 6 Session 2
Mental Strategies Answers
Q Question Answer
1 8 + ☐ = 20 12
2 Double 49 98
3 69 + 10 79
4 196 − 80 116
5 6 = 3 + ☐ 3
6 53 − 8 = 53 − 3 − ☐ 5
7 9 = 9 × ☐ 1
8
Draw hands on the clock face showing
quarter to nine
See clock above
9 What is double 8? 16
10 Halve 14 7
161. Week 6 Session 2
Timestables Answers
Q Question Answer
1 8 × 1 = ☐ 8
2 28 ÷ 4 = ☐ 7
3 2 × ☐ = 6 3
4 28 ÷ ☐ = 4 7
5 4 × 6 = ☐ 24
6 6 ÷ 3 = ☐ 2
7 ☐ × 2 = 8 4
8 ☐ ÷ 7 = 8 56
9 8 × 8 = ☐ 64
10 80 ÷ 10 = ☐ 8
162. Week 6 Session 2
Key Skills Answers
Q Question Answer
1 What is the value of 15 squared? 225
2 3530 + 6819 10349
3 (8 − 2) × 2 12
4
Write Twenty Four Thousand, Three Hundred
in digits
24300
5 43.537 ÷ 100 0.43537
6 (−8) × 1 −8
7 Round 22.7383 to 1 d.p. 22.7
8 2 + (−7) −5
9 Round 275 to 1 s.f. 300
10 Letter at (2, 1) J
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166. Week 6 Session 3
Mental Strategies Answers
Q Question Answer
1 11 + ☐ = 20 9
2 What is double 34? 68
3 193 + 10 203
4 140 − 50 90
5 4 = 1 + ☐ 3
6 19 − 11 = 19 − 9 − ☐ 2
7 14 + 14 + 14 = ☐ × 14 3
8 What is the time on the clock? 4:35 am
9 What is double 8? 16
10 What is half of 72? 36
167. Week 6 Session 3
Timestables Answers
Q Question Answer
1 7 × 4 = ☐ 28
2 1 ÷ 1 = ☐ 1
3 10 × ☐ = 100 10
4 90 ÷ ☐ = 10 9
5 8 × 8 = ☐ 64
6 30 ÷ 5 = ☐ 6
7 ☐ × 10 = 10 1
8 ☐ ÷ 8 = 7 56
9 4 × 9 = ☐ 36
10 4 ÷ 4 = ☐ 1
168. Week 6 Session 3
Key Skills Answers
Q Question Answer
1 What is the positive value of √16? 4
2 224 + 9070 9294
3 (7 + 1) × 3 24
4 Write Four Hundred and Sixty Two in digits 462
5 59.742 ÷ 10 5.9742
6 (−7) × (−4) 28
7 Round 0.9451 to 2 d.p. 0.95
8 2 + (−2) 0
9 Round 0.8243 to 3 s.f. 0.824
10 Letter at (−1, 1) G
171. Click the logo to begin
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172. Week 6 Session 4
Mental Strategies Answers
Q Question Answer
1 ☐ + 17 = 20 3
2 Double 66 132
3 95 + 10 105
4 25 − 20 5
5 6 = 4 + ☐ 2
6 66 − 10 = 66 − 6 − ☐ 4
7 9 = 9 × ☐ 1
8 What is the time on the clock? 7:15 pm
9 Double 5 10
10 What is half of 59? 29.5
173. Week 6 Session 4
Timestables Answers
Q Question Answer
1 4 × 3 = ☐ 12
2 12 ÷ 4 = ☐ 3
3 5 × ☐ = 25 5
4 10 ÷ ☐ = 2 5
5 4 × 7 = ☐ 28
6 14 ÷ 2 = ☐ 7
7 ☐ × 8 = 80 10
8 ☐ ÷ 1 = 3 3
9 5 × 6 = ☐ 30
10 18 ÷ 2 = ☐ 9
174. Week 6 Session 4
Key Skills Answers
Q Question Answer
1 What is the positive value of √25? 5
2 1668 + 2809 4477
3 (10 − 10)2
+ 3 × 2 6
4 Write Ten Thousand, Nine Hundred in digits 10900
5 62.487 ÷ 1000 0.062487
6 2 × (−7) −14
7 Round 45.4952 to 3 d.p. 45.495
8 (−4) + (−3) −7
9 Round 0.002734 to 3 s.f. 0.00273
10 Letter at (2, −2) Z
177. Click the logo to begin
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178. Week 6 Session 5
Mental Strategies Answers
Q Question Answer
1 1 + ☐ = 20 19
2 Double 54 108
3 22 + 10 32
4 44 − 40 4
5 7 = 2 + ☐ 5
6 75 − 11 = 75 − 5 − ☐ 6
7 6 + 6 + 6 + 6 + 6 = 6 × ☐ 5
8 What is the time on the clock? 4:50 pm
9 Double 7 14
10 What is half of 44? 22
179. Week 6 Session 5
Timestables Answers
Q Question Answer
1 6 × 6 = ☐ 36
2 2 ÷ 2 = ☐ 1
3 6 × ☐ = 12 2
4 40 ÷ ☐ = 5 8
5 1 × 9 = ☐ 9
6 40 ÷ 8 = ☐ 5
7 ☐ × 7 = 49 7
8 ☐ ÷ 3 = 1 3
9 2 × 2 = ☐ 4
10 48 ÷ 6 = ☐ 8
180. Week 6 Session 5
Key Skills Answers
Q Question Answer
1 What is the value of 112
? 121
2 7905 + 626 8531
3 (10 − 9) × 1 1
4
Write 744620 in words. (Use the opposite page
for your answer)
Seven Hundred and
Forty Four Thousand,
Six Hundred and
Twenty
5 0.67 ÷ 100 0.0067
6 3 × (−1) −3
7 Round 1.982 to 2 d.p. 1.98
8 (−3) + (−6) −9
9 Round 0.2352 to 3 s.f. 0.235
183. Click the logo to begin
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184. Week 7 Session 1
Mental Strategies Answers
Q Question Answer
1 4 + 1 5
2 66 + ☐ = 100 34
3 What is half of 6? 3
4 122 − 10 112
5 56 + ☐ = 90 34
6 56 = 26 + ☐ 30
7 199 − 194 5
8 10 × 5 = 50, so 50 ÷ 10 = ☐ 5
9 Write 2:15 pm in 24 hour clock format 14:15
10 From 15:09, how many minutes until 15:30? 21
185. Week 7 Session 1
Timestables Answers
Q Question Answer
1 9 × 5 = ☐ 45
2 60 ÷ 6 = ☐ 10
3 2 × ☐ = 16 8
4 10 ÷ ☐ = 1 10
5 9 × 10 = ☐ 90
6 12 ÷ 2 = ☐ 6
7 ☐ × 5 = 20 4
8 ☐ ÷ 4 = 6 24
9 8 × 3 = ☐ 24
10 18 ÷ 6 = ☐ 3
186. Week 7 Session 1
Key Skills Answers
Q Question Answer
1 List all the factors of 2 2, 1
2 What is 1/2 of 8? 4
3 65 × 38 2470
4 11661 − 7509 4152
5 8.2 × 3.5 28.7
6 173.2% as a decimal number 1.732
7 13 + 4.5 17.5
8 40 ÷ (−10) −4
9
If a = 4 b = 5 and c = 7, what is the value of
3b − 2a ?
7
10 7 − (−5) 12
189. Click the logo to begin
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190. Week 7 Session 2
Mental Strategies Answers
Q Question Answer
1 3 + 2 5
2 75 + ☐ = 100 25
3 Halve 2 1
4 159 − 10 149
5 61 + ☐ = 130 69
6 96 = 60 + ☐ 36
7 712 − 711 1
8 1 × 9 = 9, so 9 ÷ 1 = ☐ 9
9 Write 17:39 in 12 hour clock format 5:39 pm
10 From 01:49, how many minutes until 02:29? 40
191. Week 7 Session 2
Timestables Answers
Q Question Answer
1 2 × 6 = ☐ 12
2 28 ÷ 7 = ☐ 4
3 4 × ☐ = 36 9
4 24 ÷ ☐ = 4 6
5 6 × 7 = ☐ 42
6 8 ÷ 8 = ☐ 1
7 ☐ × 8 = 40 5
8 ☐ ÷ 2 = 7 14
9 3 × 8 = ☐ 24
10 8 ÷ 8 = ☐ 1
192. Week 7 Session 2
Key Skills Answers
Q Question Answer
1
What is the highest common factor of 11 and
3?
1
2 What is 4/5 of 5? 4
3 5 × 666 3330
4 18897 − 9897 9000
5 4.61 × 5 23.05
6 17% as a decimal number 0.17
7 11 + 8.69 19.69
8 (−8) ÷ 2 −4
9
If a = 2 b = 2 and c = 8, what is the value of
ac2
+ 2 ?
130
10 6 − (−8) 14
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196. Week 7 Session 3
Mental Strategies Answers
Q Question Answer
1 1 + ☐ = 5 4
2 ☐ + 58 = 100 42
3 Halve 7 3.5
4 158 − 10 148
5 91 + ☐ = 180 89
6 114 = 24 + ☐ 90
7 104 − 100 4
8 2 × 8 = 16, so 16 ÷ 8 = ☐ 2
9 Write 02:29 in 12 hour clock format 2:29 am
10 4:14 pm is how many minutes after 3:56 pm? 18
197. Week 7 Session 3
Timestables Answers
Q Question Answer
1 2 × 3 = ☐ 6
2 18 ÷ 2 = ☐ 9
3 3 × ☐ = 15 5
4 20 ÷ ☐ = 5 4
5 2 × 3 = ☐ 6
6 70 ÷ 7 = ☐ 10
7 ☐ × 2 = 2 1
8 ☐ ÷ 3 = 5 15
9 6 × 9 = ☐ 54
10 6 ÷ 3 = ☐ 2
198. Week 7 Session 3
Key Skills Answers
Q Question Answer
1
What is the highest common factor of 24 and
4?
4
2 What is 4/6 of 6? 4
3 549 × 4 2196
4 6062 − 3640 2422
5 8.7 × 85.92 747.504
6 0.83 = ☐% 83
7 11 + 1.14 12.14
8 (−30) ÷ (−5) 6
9
If a = 10 b = 6 and c = 4, what is the value of
3b − (a + c) ?
4
10 4 − (−2) 6
201. Click the logo to begin
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202. Week 7 Session 4
Mental Strategies Answers
Q Question Answer
1 4 + 1 5
2 ☐ + 78 = 100 22
3 Halve 6 3
4 165 − 10 155
5 116 + ☐ = 130 14
6 66 = 20 + ☐ 46
7 186 − 182 4
8 7 × 5 = 35, so 35 ÷ 5 = ☐ 7
9 Write 12:10 pm in 24 hour clock format 12:10
10 1:57 am is how many minutes after 1:13 am? 44
203. Week 7 Session 4
Timestables Answers
Q Question Answer
1 3 × 4 = ☐ 12
2 36 ÷ 9 = ☐ 4
3 8 × ☐ = 80 10
4 15 ÷ ☐ = 5 3
5 6 × 1 = ☐ 6
6 16 ÷ 8 = ☐ 2
7 ☐ × 10 = 60 6
8 ☐ ÷ 10 = 3 30
9 3 × 3 = ☐ 9
10 24 ÷ 4 = ☐ 6
204. Week 7 Session 4
Key Skills Answers
Q Question Answer
1 Is 10 a factor of 36? No
2 What is 2/4 of 4? 2
3 2 × 344 688
4 18797 − 9492 9305
5 5 × 1.6 8
6 0.56 = ☐% 56
7 15 + 0.47 15.47
8 12 ÷ (−4) −3
9
If a = 1 b = 4 and c = 9, what is the value of
c2
− b3 17
10 (−10) − (−9) −1
207. Click the logo to begin
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208. Week 7 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 3 = 5 2
2 15 + 85 100
3 Halve 2 1
4 196 − 10 186
5 188 + ☐ = 260 72
6 62 = 32 + ☐ 30
7 604 − 601 3
8 8 × 4 = 32, so 32 ÷ 4 = ☐ 8
9 Write 05:48 in 12 hour clock format 5:48 am
10 From 22:06, how many minutes until 22:28? 22
209. Week 7 Session 5
Timestables Answers
Q Question Answer
1 4 × 4 = ☐ 16
2 8 ÷ 4 = ☐ 2
3 8 × ☐ = 16 2
4 5 ÷ ☐ = 1 5
5 6 × 8 = ☐ 48
6 9 ÷ 3 = ☐ 3
7 ☐ × 6 = 24 4
8 ☐ ÷ 2 = 10 20
9 7 × 6 = ☐ 42
10 70 ÷ 10 = ☐ 7
210. Week 7 Session 5
Key Skills Answers
Q Question Answer
1
What is the highest common factor of 29 and
22?
1
2 What is 3/4 of 40? 30
3 6 × 564 3384
4 14786 − 8106 6680
5 9.4 × 7.4 69.56
6 2/10 as a decimal number 0.2
7 34.53 + 6.2 40.73
8 (−1) ÷ 1 −1
9
If a = 4 b = 1 and c = 2, what is the value of
3a / 2 ?
6
10 1 − (−2) 3
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214. Week 8 Session 1
Mental Strategies Answers
Q Question Answer
1 8 + 2 10
2 What is double 4? 8
3 What is half of 33? 16.5
4 174 + 70 244
5 57 + 58 115
6 68 + 11 = 68 + 2 + ☐ 9
7 5 + 822 827
8 79 + 52 = 79 + 50 + ☐ 2
9 152 + 10 162
10 44 − 10 34
215. Week 8 Session 1
Timestables Answers
Q Question Answer
1 6 × 7 = ☐ 42
2 2 ÷ 2 = ☐ 1
3 10 × ☐ = 90 9
4 2 ÷ ☐ = 1 2
5 4 × 5 = ☐ 20
6 45 ÷ 9 = ☐ 5
7 ☐ × 6 = 42 7
8 ☐ ÷ 2 = 3 6
9 9 × 1 = ☐ 9
10 7 ÷ 7 = ☐ 1
216. Week 8 Session 1
Key Skills Answers
Q Question Answer
1 List the first 4 multiples of 5 5, 10, 15, 20
2 What is 65% of £100? £65
3 4890 ÷ 5 978
4 8 + 4 ÷ 1 12
5 5.4 ÷ 2 2.7
6 100 × 0.97 97
7 26.93 − 4.83 22.1
8 Simplify 3/18 1/6
9 (−7) + 2 −5
10 See number line 8
0
1
2
3
4
5
0 10
Value of the dot?
219. Click the logo to begin
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220. Week 8 Session 2
Mental Strategies Answers
Q Question Answer
1 ☐ + 8 = 10 2
2 What is double 1? 2
3 What is half of 91? 45.5
4 60 + 20 80
5 12 + 9 21
6 84 + 11 = 84 + 6 + ☐ 5
7 4 + 876 880
8 70 + 76 = 70 + 70 + ☐ 6
9 71 + 10 81
10 198 − 60 138
221. Week 8 Session 2
Timestables Answers
Q Question Answer
1 7 × 7 = ☐ 49
2 20 ÷ 4 = ☐ 5
3 1 × ☐ = 7 7
4 54 ÷ ☐ = 6 9
5 9 × 9 = ☐ 81
6 40 ÷ 10 = ☐ 4
7 ☐ × 6 = 18 3
8 ☐ ÷ 4 = 5 20
9 3 × 2 = ☐ 6
10 18 ÷ 6 = ☐ 3
222. Week 8 Session 2
Key Skills Answers
Q Question Answer
1 Is 16 a multiple of 2? Yes
2 What is 60% of £220? £132
3 7551 ÷ 9 839
4 11 − 3 ÷ 3 10
5 13.2 ÷ 2 6.6
6 10 × 0.88 8.8
7 22.68 − 8.44 14.24
8 Write 63/90 in its simplest form 7/10
9 Difference between 9 and −1 10
10 See number line 12.5
0
1
2
3
4
5
0 20
Value of the dot?
225. Click the logo to begin
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226. Week 8 Session 3
Mental Strategies Answers
Q Question Answer
1 3 + 7 10
2 Double 3 6
3 What is half of 39? 19.5
4 127 + 50 177
5 95 + 92 187
6 90 + 11 = 90 + 10 + ☐ 1
7 5 + 440 445
8 77 + 92 = 70 + 90 + ☐ 9
9 26 + 10 36
10 111 − 50 61
227. Week 8 Session 3
Timestables Answers
Q Question Answer
1 5 × 9 = ☐ 45
2 24 ÷ 6 = ☐ 4
3 6 × ☐ = 36 6
4 80 ÷ ☐ = 10 8
5 5 × 1 = ☐ 5
6 50 ÷ 10 = ☐ 5
7 ☐ × 6 = 12 2
8 ☐ ÷ 1 = 4 4
9 8 × 7 = ☐ 56
10 6 ÷ 1 = ☐ 6
228. Week 8 Session 3
Key Skills Answers
Q Question Answer
1 List the first 4 multiples of 11 11, 22, 33, 44
2 What is 20% of £170? £34
3 1437 ÷ 3 479
4 10 + 8 ÷ 2 14
5 3.2 ÷ 4 0.8
6 100 × 0.66 66
7 16.25 − 7.39 8.86
8 Simplify 20/25 4/5
9 Which is the highest number, −2 or −1? −1
10 See number line 12.5
0
1
2
3
4
5
12 15
Value of the dot?
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232. Week 8 Session 4
Mental Strategies Answers
Q Question Answer
1 3 + 7 10
2 What is double 2? 4
3 What is half of 46? 23
4 28 + 30 58
5 27 + 24 51
6 79 + 6 = 79 + 1 + ☐ 5
7 2 + 181 183
8 31 + 72 = 30 + 70 + ☐ 3
9 16 + 10 26
10 132 − 80 52
233. Week 8 Session 4
Timestables Answers
Q Question Answer
1 5 × 3 = ☐ 15
2 56 ÷ 8 = ☐ 7
3 7 × ☐ = 49 7
4 28 ÷ ☐ = 7 4
5 4 × 7 = ☐ 28
6 24 ÷ 4 = ☐ 6
7 ☐ × 7 = 7 1
8 ☐ ÷ 8 = 8 64
9 1 × 3 = ☐ 3
10 54 ÷ 9 = ☐ 6
234. Week 8 Session 4
Key Skills Answers
Q Question Answer
1 List the first 4 multiples of 11 11, 22, 33, 44
2 What is 65% of £170? £110.50
3 1395 ÷ 9 155
4 37 − 4 × 2 29
5 562.26 ÷ 6 93.71
6 100 × 1.66 166
7 16 − 6.8 9.2
8 Write 24/64 in its simplest form 3/8
9 Difference between −7 and 4 11
10 See number line 4.5
0
1
2
3
4
5
4 6
Value of the dot?
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238. Week 8 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 8 = 10 2
2 What is double 8? 16
3 Halve 36 18
4 163 + 40 203
5 41 + 42 83
6 13 + 10 = 13 + 7 + ☐ 3
7 4 + 844 848
8 56 + 23 = 56 + 20 + ☐ 3
9 177 + 10 187
10 83 − 20 63
239. Week 8 Session 5
Timestables Answers
Q Question Answer
1 10 × 10 = ☐ 100
2 56 ÷ 8 = ☐ 7
3 4 × ☐ = 4 1
4 60 ÷ ☐ = 10 6
5 1 × 7 = ☐ 7
6 30 ÷ 6 = ☐ 5
7 ☐ × 2 = 6 3
8 ☐ ÷ 4 = 8 32
9 9 × 2 = ☐ 18
10 56 ÷ 8 = ☐ 7
240. Week 8 Session 5
Key Skills Answers
Q Question Answer
1
What is the lowest common multiple of 2 and
3?
6
2 What is 75% of £120? £90
3 237 ÷ 3 79
4 8 + 6 × 3 26
5 631.47 ÷ 7 90.21
6 1000 × 9.23 9230
7 88.87 − 3.68 85.19
8 Write 27/72 in its simplest form 3/8
9 (−2) + 2 0
10 See number line 0.3
0
1
2
3
4
5
0 1
Value of the dot?
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244. Week 9 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 12 = 20 8
2 What is double 94? 188
3 168 + 10 178
4 45 − 20 25
5 9 = 3 + ☐ 6
6 14 − 6 = 14 − 4 − ☐ 2
7 39 = 39 × ☐ 1
8
Draw hands on the clock face showing 11:10
pm
See clock above
9 63 − 10 53
10 197 + 40 237
245. Week 9 Session 1
Timestables Answers
Q Question Answer
1 7 × 3 = ☐ 21
2 80 ÷ 10 = ☐ 8
3 3 × ☐ = 9 3
4 16 ÷ ☐ = 8 2
5 10 × 2 = ☐ 20
6 16 ÷ 8 = ☐ 2
7 ☐ × 9 = 9 1
8 ☐ ÷ 7 = 7 49
9 4 × 8 = ☐ 32
10 20 ÷ 4 = ☐ 5
246. Week 9 Session 1
Key Skills Answers
Q Question Answer
1 What is the value of 43
? 64
2 1/5 = 9/☐ 45
3 3903 + 6770 10673
4 (8 + 3) × 5 55
5
Write 881034 in words. (Use the opposite page
for your answer)
Eight Hundred and
Eighty One Thousand
and Thirty Four
6 0.98 ÷ 100 0.0098
7 (−5) × (−8) 40
8 Round 6.5893 to 2 d.p. 6.59
9 5 + (−8) −3
10 Round 423 to 2 s.f. 420
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250. Week 9 Session 2
Mental Strategies Answers
Q Question Answer
1 10 + ☐ = 20 10
2 What is double 66? 132
3 10 + 10 20
4 102 − 20 82
5 9 = 1 + ☐ 8
6 21 − 3 = 21 − 1 − ☐ 2
7 17 + 17 + 17 = ☐ × 17 3
8 What time is shown on the clock? 1:05 pm
9 161 − 10 151
10 80 + 70 150
251. Week 9 Session 2
Timestables Answers
Q Question Answer
1 8 × 7 = ☐ 56
2 70 ÷ 7 = ☐ 10
3 4 × ☐ = 8 2
4 56 ÷ ☐ = 8 7
5 6 × 4 = ☐ 24
6 90 ÷ 10 = ☐ 9
7 ☐ × 10 = 20 2
8 ☐ ÷ 3 = 5 15
9 5 × 7 = ☐ 35
10 40 ÷ 4 = ☐ 10
252. Week 9 Session 2
Key Skills Answers
Q Question Answer
1 What is the value of ∛64? 4
2 10/4 = 50/☐ 20
3 4626 + 2373 6999
4 (1 − 1)2
+ 5 × 4 20
5
Write Eight Hundred and Seventy Nine
Thousand, Six Hundred and Thirty Five in digits
879635
6 0.92 ÷ 1000 0.00092
7 6 × (−7) −42
8 Round 56.7721 to 3 d.p. 56.772
9 7 + (−6) 1
10 Round 0.00876 to 2 s.f. 0.0088
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256. Week 9 Session 3
Mental Strategies Answers
Q Question Answer
1 12 + 8 20
2 What is double 53? 106
3 90 + 10 100
4 86 − 10 76
5 7 = 2 + ☐ 5
6 53 − 11 = 53 − 3 − ☐ 8
7 35 + 35 + 35 + 35 = 35 × ☐ 4
8
Draw hands on the clock face showing twenty
past three
See clock above
9 71 − 10 61
10 197 + 30 227
257. Week 9 Session 3
Timestables Answers
Q Question Answer
1 5 × 6 = ☐ 30
2 18 ÷ 3 = ☐ 6
3 9 × ☐ = 90 10
4 32 ÷ ☐ = 8 4
5 2 × 5 = ☐ 10
6 56 ÷ 7 = ☐ 8
7 ☐ × 2 = 10 5
8 ☐ ÷ 7 = 9 63
9 10 × 5 = ☐ 50
10 40 ÷ 8 = ☐ 5
258. Week 9 Session 3
Key Skills Answers
Q Question Answer
1 What is the value of (−3) cubed? −27
2 6/3 = 60/☐ 30
3 810 + 1880 2690
4 (6 − 2) × 4 16
5
Write Five Hundred and Fifty Five Thousand,
Fifty Three in digits
555053
6 6.41 ÷ 10 0.641
7 (−8) × 2 −16
8 Round 5.8056 to 3 d.p. 5.806
9 3 + (−10) −7
10 Round 0.7588 to 2 s.f. 0.76
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262. Week 9 Session 4
Mental Strategies Answers
Q Question Answer
1 6 + 14 20
2 What is double 70? 140
3 176 + 10 186
4 176 − 10 166
5 7 = 6 + ☐ 1
6 84 − 7 = 84 − 4 − ☐ 3
7 52 + 52 + 52 = ☐ × 52 3
8 What time is shown on the clock? 2:40 am
9 113 − 10 103
10 148 + 30 178
263. Week 9 Session 4
Timestables Answers
Q Question Answer
1 6 × 10 = ☐ 60
2 60 ÷ 6 = ☐ 10
3 5 × ☐ = 35 7
4 24 ÷ ☐ = 3 8
5 9 × 4 = ☐ 36
6 45 ÷ 9 = ☐ 5
7 ☐ × 5 = 15 3
8 ☐ ÷ 8 = 9 72
9 1 × 3 = ☐ 3
10 21 ÷ 3 = ☐ 7
264. Week 9 Session 4
Key Skills Answers
Q Question Answer
1 What is the value of 10 cubed? 1000
2 1/1 = ☐/5 5
3 1952 + 2298 4250
4 (4 + 44) ÷ 6 8
5
Write One Thousand, Two Hundred and
Thirty Seven in digits
1237
6 7.97 ÷ 10 0.797
7 (−4) × (−1) 4
8 Round 3.4417 to 2 d.p. 3.44
9 7 + (−10) −3
10 Round 4 to 2 s.f. 4.0
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268. Week 9 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 12 = 20 8
2 Double 11 22
3 11 + 10 21
4 173 − 50 123
5 7 = 5 + ☐ 2
6 30 − 11 = 30 − 10 − ☐ 1
7 48 + 48 + 48 + 48 + 48 = ☐ × 48 5
8 What time is shown on the clock? 6:25 am
9 148 − 10 138
10 160 + 70 230
269. Week 9 Session 5
Timestables Answers
Q Question Answer
1 9 × 1 = ☐ 9
2 3 ÷ 3 = ☐ 1
3 2 × ☐ = 18 9
4 18 ÷ ☐ = 3 6
5 1 × 10 = ☐ 10
6 30 ÷ 6 = ☐ 5
7 ☐ × 2 = 2 1
8 ☐ ÷ 2 = 5 10
9 1 × 4 = ☐ 4
10 36 ÷ 9 = ☐ 4
270. Week 9 Session 5
Key Skills Answers
Q Question Answer
1 What is the value of (−3) cubed? −27
2 1/7 = ☐/70 10
3 6286 + 2044 8330
4 12
+ 2 × 4 9
5
Write Three Million, Nine Hundred and Fifty Two
Thousand, Seven Hundred and Twenty in digits
3952720
6 5.9 ÷ 1000 0.0059
7 6 × (−1) −6
8 Round 5.3443 to 1 d.p. 5.3
9 (−4) + (−3) −7
10 Round 0.5056 to 1 s.f. 0.5
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274. Week 10 Session 1
Mental Strategies Answers
Q Question Answer
1 4 + ☐ = 5 1
2 31 + ☐ = 100 69
3 What is half of 6? 3
4 20 − 10 10
5 84 + ☐ = 120 36
6 93 = 33 + ☐ 60
7 423 − 418 5
8 8 × 10 = 80, so 80 ÷ 8 = ☐ 10
9 Write 22:11 in 12 hour clock format 10:11 pm
10 12:25 is how many minutes after 12:20? 5
275. Week 10 Session 1
Timestables Answers
Q Question Answer
1 1 × 5 = ☐ 5
2 12 ÷ 4 = ☐ 3
3 10 × ☐ = 70 7
4 7 ÷ ☐ = 1 7
5 7 × 1 = ☐ 7
6 2 ÷ 2 = ☐ 1
7 ☐ × 10 = 30 3
8 ☐ ÷ 3 = 3 9
9 9 × 5 = ☐ 45
10 70 ÷ 10 = ☐ 7
276. Week 10 Session 1
Key Skills Answers
Q Question Answer
1 (−4) − (−9) 5
2 Letter at (−2, −1) Q
3 What is 1/1 of 10? 10
4 4 × 607 2428
5 1270 − 914 356
6 3 × 2 6
7 93/100 = ☐% 93%
8 3.66 + 35.33 38.99
9 5 ÷ (−5) −1
10
If a = 3 b = 1 and c = 6, what is the value of
a2
b3
+ 2c ?
21
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280. Week 10 Session 2
Mental Strategies Answers
Q Question Answer
1 3 + ☐ = 5 2
2 27 + ☐ = 100 73
3 What is half of 2? 1
4 179 − 10 169
5 163 + ☐ = 230 67
6 50 = 30 + ☐ 20
7 733 − 732 1
8 10 × 3 = 30, so 30 ÷ 3 = ☐ 10
9 Write 2:17 pm in 24 hour clock format 14:17
10
From 1:13 pm, how many minutes until 2:10
pm?
57
281. Week 10 Session 2
Timestables Answers
Q Question Answer
1 2 × 5 = ☐ 10
2 18 ÷ 2 = ☐ 9
3 5 × ☐ = 10 2
4 12 ÷ ☐ = 6 2
5 7 × 8 = ☐ 56
6 30 ÷ 10 = ☐ 3
7 ☐ × 3 = 6 2
8 ☐ ÷ 4 = 2 8
9 7 × 2 = ☐ 14
10 4 ÷ 1 = ☐ 4
282. Week 10 Session 2
Key Skills Answers
Q Question Answer
1 (−2) − (−1) −1
2 Letter at (2, −2) Z
3 What is 2/3 of 6? 4
4 45 × 28 1260
5 18059 − 9664 8395
6 1.3 × 3.9 5.07
7 0.18 = ☐% 18
8 4.56 + 83.2 87.76
9 35 ÷ (−5) −7
10
If a = 3 b = 5 and c = 5, what is the value of
2a + b/c ?
7
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286. Week 10 Session 3
Mental Strategies Answers
Q Question Answer
1 1 + ☐ = 5 4
2 50 + ☐ = 100 50
3 What is half of 4? 2
4 85 − 10 75
5 157 + ☐ = 210 53
6 78 = 8 + ☐ 70
7 636 − 631 5
8 9 × 3 = 27, so 27 ÷ 9 = ☐ 3
9 Write 9:13 am in 24 hour clock format 09:13
10 From 13:08, how many minutes until 14:07? 59
287. Week 10 Session 3
Timestables Answers
Q Question Answer
1 1 × 1 = ☐ 1
2 3 ÷ 1 = ☐ 3
3 7 × ☐ = 42 6
4 10 ÷ ☐ = 5 2
5 3 × 5 = ☐ 15
6 63 ÷ 9 = ☐ 7
7 ☐ × 7 = 56 8
8 ☐ ÷ 4 = 5 20
9 9 × 8 = ☐ 72
10 7 ÷ 7 = ☐ 1
288. Week 10 Session 3
Key Skills Answers
Q Question Answer
1 5 − (−5) 10
2 Letter at (1, −1) T
3 What is 3/4 of 32? 24
4 3 × 868 2604
5 17597 − 9209 8388
6 4 × 8.99 35.96
7 9/10 = ☐% 90%
8 96.9 + 5.62 102.52
9 (−4) ÷ (−4) 1
10
If a = 8 b = 5 and c = 2, what is the value of
5a − bc ?
30
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292. Week 10 Session 4
Mental Strategies Answers
Q Question Answer
1 3 + ☐ = 5 2
2 16 + 84 100
3 Halve 7 3.5
4 160 − 10 150
5 194 + ☐ = 270 76
6 58 = 18 + ☐ 40
7 976 − 973 3
8 8 × 5 = 40, so 40 ÷ 5 = ☐ 8
9 Write 10:05 in 12 hour clock format 10:05 am
10 From 22:19, how many minutes until 22:30? 11
293. Week 10 Session 4
Timestables Answers
Q Question Answer
1 2 × 5 = ☐ 10
2 7 ÷ 7 = ☐ 1
3 1 × ☐ = 4 4
4 10 ÷ ☐ = 2 5
5 5 × 8 = ☐ 40
6 35 ÷ 5 = ☐ 7
7 ☐ × 8 = 32 4
8 ☐ ÷ 9 = 6 54
9 3 × 3 = ☐ 9
10 8 ÷ 4 = ☐ 2
294. Week 10 Session 4
Key Skills Answers
Q Question Answer
1 4 − (−5) 9
2 Letter at (1, 0) N
3 What is 3/9 of 27? 9
4 5 × 323 1615
5 999 − 937 62
6 9.8 × 74.61 731.178
7 7/10 = ☐% 70%
8 7.87 + 21.69 29.56
9 10 ÷ (−5) −2
10
If a = 6 b = 8 and c = 8, what is the value of
c / (b − a) ?
4
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298. Week 10 Session 5
Mental Strategies Answers
Q Question Answer
1 1 + 4 5
2 22 + 78 100
3 What is half of 4? 2
4 156 − 10 146
5 70 + ☐ = 80 10
6 106 = 46 + ☐ 60
7 417 − 412 5
8 8 × 5 = 40, so 40 ÷ 5 = ☐ 8
9 Write 09:37 in 12 hour clock format 9:37 am
10 8:35 am is how many minutes after 7:44 am? 51
299. Week 10 Session 5
Timestables Answers
Q Question Answer
1 3 × 8 = ☐ 24
2 32 ÷ 4 = ☐ 8
3 5 × ☐ = 45 9
4 40 ÷ ☐ = 4 10
5 1 × 4 = ☐ 4
6 18 ÷ 2 = ☐ 9
7 ☐ × 4 = 16 4
8 ☐ ÷ 10 = 8 80
9 7 × 8 = ☐ 56
10 54 ÷ 9 = ☐ 6
300. Week 10 Session 5
Key Skills Answers
Q Question Answer
1 2 − (−8) 10
2 Letter at (2, 1) J
3 What is 2/5 of 45? 18
4 13 × 80 1040
5 1112 − 654 458
6 6 × 79.89 479.34
7 1.594 = ☐% 159.4
8 17 + 5.7 22.7
9 (−80) ÷ (−8) 10
10
If a = 1 b = 3 and c = 1, what is the value of
√(a + b)
2 (or −2)
303. Click the logo to begin
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304. Week 11 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 8 = 10 2
2 What is double 4? 8
3 What is half of 70? 35
4 62 + 80 = ☐ 142
5 156 + ☐ = 160 4
6 17 + 15 = ☐ 32
7 6 = 3 + ☐ 3
8 14 + 11 = 14 + 6 + ☐ 5
9 1 + 896 = ☐ 897
10 35 + 91 = 30 + 90 + ☐ 6
305. Week 11 Session 1
Timestables Answers
Q Question Answer
1 10 × 8 = ☐ 80
2 70 ÷ 10 = ☐ 7
3 16 ÷ ☐ = 4 4
4 20 ÷ 4 = ☐ 5
5 12 ÷ 6 = ☐ 2
6 7 × ☐ = 49 7
7 7 × ☐ = 63 9
8 24 ÷ ☐ = 8 3
9 30 ÷ 5 = ☐ 6
10 ☐ ÷ 2 = 9 18
306. Week 11 Session 1
Key Skills Answers
Q Question Answer
1 371 ÷ 7 = ☐ 53
2 2 + 9 ÷ 3 5
3 17.18 ÷ 0.2 85.9
4 0.04 × 10 0.4
5 70.11 − 23.48 46.63
6 Simplify 30/60 1/2
7 Difference between 2 and −3 5
8 Value of the dot 10
9 What is the value of 152? 225
10 What is 20% of £100? £20
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310. Week 11 Session 2
Mental Strategies Answers
Q Question Answer
1 ☐ + 7 = 10 3
2 What is double 1? 2
3 Halve 92 46
4 166 + 80 = ☐ 246
5 108 + ☐ = 110 2
6 11 + 14 = ☐ 25
7 5 = 2 + ☐ 3
8 16 + 9 = 16 + 4 + ☐ 5
9 6 + 333 = ☐ 339
10 43 + 58 = 40 + 50 + ☐ 11
311. Week 11 Session 2
Timestables Answers
Q Question Answer
1 ☐ × 10 = 100 10
2 20 ÷ 10 = ☐ 2
3 ☐ × 7 = 28 4
4 ☐ × 10 = 40 4
5 48 ÷ ☐ = 8 6
6 49 ÷ 7 = ☐ 7
7 7 × ☐ = 70 10
8 30 ÷ 3 = ☐ 10
9 5 × 10 = ☐ 50
10 6 ÷ 2 = ☐ 3
312. Week 11 Session 2
Key Skills Answers
Q Question Answer
1 729 ÷ 9 = ☐ 81
2 7 + 4 × 2 15
3 6.51 ÷ 0.5 13.02
4 1000 × 4.06 4060
5 80 − 6.55 73.45
6 Write 3/6 in its simplest form 1/2
7 Difference between −9 and −2 7
8 Value of the dot 55
9 What is the positive square root of 81? 9
10 What is 105% of £20? £21
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316. Week 11 Session 3
Mental Strategies Answers
Q Question Answer
1 ☐ + 9 = 10 1
2 What is double 5? 10
3 What is half of 61? 30.5
4 145 + 40 = ☐ 185
5 55 + ☐ = 60 5
6 70 + 71 = ☐ 141
7 5 = 1 + ☐ 4
8 81 + 14 = 81 + 9 + ☐ 5
9 4 + 431 = ☐ 435
10 96 + 73 = 96 + 70 + ☐ 3
317. Week 11 Session 3
Timestables Answers
Q Question Answer
1 70 ÷ 10 = ☐ 7
2 70 ÷ ☐ = 7 10
3 4 × 7 = ☐ 28
4 4 × ☐ = 16 4
5 36 ÷ ☐ = 6 6
6 ☐ ÷ 7 = 7 49
7 ☐ ÷ 7 = 2 14
8 ☐ × 9 = 27 3
9 35 ÷ 5 = ☐ 7
10 ☐ × 7 = 14 2
318. Week 11 Session 3
Key Skills Answers
Q Question Answer
1 198 ÷ 2 = ☐ 99
2 2 × 2 + 10 14
3 13.39 ÷ 0.2 66.95
4 10 × 68.738 687.38
5 94 − 1.35 92.65
6 Simplify 12/48 1/4
7 6 − 7 −1
8 Value of the dot 65
9 What is the value of 8 squared? 64
10 What is 30% of £240? £72
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322. Week 11 Session 4
Mental Strategies Answers
Q Question Answer
1 10 = ☐ + 2 8
2 What is double 4? 8
3 What is half of 42? 21
4 24 + 40 = ☐ 64
5 105 + ☐ = 110 5
6 81 + 78 = ☐ 159
7 3 = 1 + ☐ 2
8 85 + 6 = 85 + 5 + ☐ 1
9 5 + 128 = ☐ 133
10 42 + 85 = 42 + 80 + ☐ 5
323. Week 11 Session 4
Timestables Answers
Q Question Answer
1 70 ÷ ☐ = 7 10
2 ☐ × 10 = 100 10
3 32 ÷ ☐ = 8 4
4 ☐ ÷ 4 = 10 40
5 ☐ × 2 = 12 6
6 63 ÷ 7 = ☐ 9
7 56 ÷ 7 = ☐ 8
8 3 × 3 = ☐ 9
9 5 × ☐ = 30 6
10 ☐ ÷ 2 = 8 16
324. Week 11 Session 4
Key Skills Answers
Q Question Answer
1 440 ÷ 5 = ☐ 88
2 7 + 10 × 1 17
3 8.77 ÷ 0.1 87.7
4 1000 × 1.58 1580
5 33.6 − 1.72 31.88
6 Write 2/16 in its simplest form 1/8
7 Which is the lowest number, −9 or −6? −9
8 Value of the dot 10
9 What is the value of 9 squared? 81
10 What is 120% of £100? £120
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328. Week 11 Session 5
Mental Strategies Answers
Q Question Answer
1 ☐ + 9 = 10 1
2 What is double 4? 8
3 What is half of 93? 46.5
4 50 + 80 = ☐ 130
5 156 + ☐ = 160 4
6 65 + 63 = ☐ 128
7 7 = 3 + ☐ 4
8 57 + 10 = 57 + 3 + ☐ 7
9 6 + 808 = ☐ 814
10 84 + 61 = 84 + 60 + ☐ 1
329. Week 11 Session 5
Timestables Answers
Q Question Answer
1 10 × ☐ = 20 2
2 60 ÷ ☐ = 6 10
3 24 ÷ ☐ = 6 4
4 ☐ ÷ 4 = 5 20
5 6 × ☐ = 54 9
6 7 × ☐ = 63 9
7 56 ÷ 7 = ☐ 8
8 ☐ × 10 = 30 3
9 5 × ☐ = 20 4
10 ☐ ÷ 2 = 6 12
330. Week 11 Session 5
Key Skills Answers
Q Question Answer
1 355 ÷ 5 = ☐ 71
2 3 + 2 ÷ 1 5
3 2 ÷ 0.1 20
4 0.51 × 100 51
5 85.338 − 6.39 78.948
6 Simplify 9/12 3/4
7 Which is the highest number, 3 or −7? 3
8 Value of the dot 45
9 What is the value of 122? 144
10 What is 80% of £180? £144
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334. Week 12 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 19 = 20 1
2 What is double 60? 120
3 196 + 10 = ☐ 206
4 170 − 90 = ☐ 80
5 37 + 36 = ☐ 73
6 6 = 1 + ☐ 5
7 81 = 11 + ☐ 70
8 21 − 6 = 21 − 1 − ☐ 5
9 ☐ × 3 = 3 + 3 + 3 3
10
Draw hands on the clock face showing 4:30
am
See clock above
335. Week 12 Session 1
Timestables Answers
Q Question Answer
1 ☐ × 3 = 18 6
2 ☐ ÷ 9 = 3 27
3 3 × ☐ = 21 7
4 ☐ ÷ 7 = 5 35
5 ☐ ÷ 7 = 10 70
6 20 ÷ 2 = ☐ 10
7 5 × 2 = ☐ 10
8 3 × ☐ = 30 10
9 36 ÷ ☐ = 4 9
10 12 ÷ 6 = ☐ 2
336. Week 12 Session 1
Key Skills Answers
Q Question Answer
1 412 + 7355 7767
2 19 − 6 × 3 1
3
Write 30964 in words. Use the opposite
page for your answer.
Thirty thousand, nine
hundred and sixty
four
4 8537.558 ÷ 1000 8.537558
5 3 × (−3) −9
6 Round 5.7318 to 2 decimal places 5.73
7 7 + (−10) −3
8 Round 0.003524 to 3 s.f. 0.00352
9 What is the value of (−10) cubed? −1000
10 2/3 = 12/☐ 18
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340. Week 12 Session 2
Mental Strategies Answers
Q Question Answer
1 20 = ☐ + 3 17
2 What is double 90? 180
3 29 + 10 = ☐ 39
4 142 − 70 = ☐ 72
5 85 + 86 = ☐ 171
6 9 = 5 + ☐ 4
7 149 = 20 + ☐ 129
8 73 − 7 = 73 − 3 − ☐ 4
9 8 + 8 = ☐ × 8 2
10
Draw hands on the clock face showing
11:15 am
See clock above
341. Week 12 Session 2
Timestables Answers
Q Question Answer
1 36 ÷ ☐ = 6 6
2 81 ÷ 9 = ☐ 9
3 9 ÷ ☐ = 3 3
4 42 ÷ 7 = ☐ 6
5 ☐ × 9 = 63 7
6 8 ÷ ☐ = 4 2
7 5 × 2 = ☐ 10
8 ☐ × 6 = 18 3
9 9 × ☐ = 90 10
10 36 ÷ ☐ = 6 6
342. Week 12 Session 2
Key Skills Answers
Q Question Answer
1 419 + 8162 8581
2 (5 + 55) ÷ 10 6
3
Write 33992 in words. Use the opposite
page for your answer.
Thirty three thousand,
nine hundred and ninety
two
4 8220.5 ÷ 100 82.205
5 9 × (−4) −36
6 Round 12.1734 to 2 decimal places 12.17
7 2 + (−6) −4
8 Round 5.02934 to 3 s.f. 5.03
9 What is the cube root of 1? 1
10 8/3 = 56/☐ 21
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346. Week 12 Session 3
Mental Strategies Answers
Q Question Answer
1 6 + ☐ = 20 14
2 Double 76 152
3 127 + 10 = ☐ 137
4 56 − 40 = ☐ 16
5 25 + 23 = ☐ 48
6 9 = 4 + ☐ 5
7 128 = 10 + ☐ 118
8 43 − 9 = 43 − 3 − ☐ 6
9 3 + 3 + 3 + 3 = ☐ × 3 4
10
Draw hands on the clock face showing 3:30
pm
See clock above
347. Week 12 Session 3
Timestables Answers
Q Question Answer
1 ☐ × 2 = 12 6
2 27 ÷ ☐ = 3 9
3 ☐ ÷ 3 = 5 15
4 7 × 4 = ☐ 28
5 7 × 8 = ☐ 56
6 2 × ☐ = 14 7
7 ☐ ÷ 5 = 2 10
8 3 × ☐ = 15 5
9 ☐ ÷ 9 = 2 18
10 36 ÷ ☐ = 6 6
348. Week 12 Session 3
Key Skills Answers
Q Question Answer
1 428 + 8149 8577
2 (2 + 46) ÷ 8 6
3
Write 8372607 in words. Use the opposite
page for your answer.
Eight million, three hundred
and seventy two thousand,
six hundred and seven
4 52.405 ÷ 100 0.52405
5 (−3) × 3 −9
6 Round 48.5363 to 1 decimal place 48.5
7 (−6) + (−10) −16
8 Round 0.006506 to 2 s.f. 0.0065
9 What is the value of (−5) cubed? −125
10 9/10 = 72/☐ 80
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352. Week 12 Session 4
Mental Strategies Answers
Q Question Answer
1 19 + ☐ = 20 1
2 What is double 58? 116
3 11 + 10 = ☐ 21
4 136 − 90 = ☐ 46
5 77 + 74 = ☐ 151
6 6 = 1 + ☐ 5
7 82 = 70 + ☐ 12
8 23 − 12 = 23 − 3 − ☐ 9
9 5 + 5 + 5 + 5 = ☐ × 5 4
10 What time is shown on the clock? 2:50 pm
353. Week 12 Session 4
Timestables Answers
Q Question Answer
1 6 × 2 = ☐ 12
2 ☐ ÷ 9 = 4 36
3 3 × ☐ = 6 2
4 ☐ × 3 = 21 7
5 ☐ × 9 = 63 7
6 2 × 7 = ☐ 14
7 ☐ × 4 = 20 5
8 ☐ ÷ 3 = 5 15
9 63 ÷ 9 = ☐ 7
10 6 × ☐ = 12 2
354. Week 12 Session 4
Key Skills Answers
Q Question Answer
1 531 + 5672 6203
2 7 − 1 × 2 5
3
Write Twenty Nine Thousand, Three
Hundred and Thirty in digits
29330
4 8.789 ÷ 1000 0.008789
5 (−3) × (−7) 21
6 Round 0.678 to 1 decimal place 0.7
7 (−2) + (−5) −7
8 Round 78.7847 to 2 s.f. 79
9 What is the value of (−10) cubed? −1000
10 5/9 = ☐/90 50
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358. Week 12 Session 5
Mental Strategies Answers
Q Question Answer
1 20 = ☐ + 5 15
2 What is double 99? 198
3 150 + 10 = ☐ 160
4 119 − 50 = ☐ 69
5 21 + 20 = ☐ 41
6 6 = 4 + ☐ 2
7 24 = 14 + ☐ 10
8 16 − 8 = 16 − 6 − ☐ 2
9 8 + 8 + 8 + 8 + 8 = ☐ × 8 5
10
Draw hands on the clock face showing 7:35
pm
See clock above
359. Week 12 Session 5
Timestables Answers
Q Question Answer
1 ☐ ÷ 6 = 7 42
2 ☐ × 4 = 36 9
3 ☐ ÷ 3 = 8 24
4 56 ÷ ☐ = 8 7
5 63 ÷ ☐ = 9 7
6 2 × 5 = ☐ 10
7 ☐ × 6 = 30 5
8 3 × ☐ = 27 9
9 9 × ☐ = 63 7
10 ☐ × 6 = 36 6
360. Week 12 Session 5
Key Skills Answers
Q Question Answer
1 8061 + 3290 11351
2 (3 + 57) ÷ 6 10
3
Write Sixty One Thousand, Five Hundred
and Sixteen in digits
61516
4 73.45 ÷ 1000 0.07345
5 (−1) × 4 −4
6 Round 0.3441 to 2 decimal places 0.34
7 4 + (−2) 2
8 Round 0.001882 to 1 s.f. 0.0019
9 What is the value of ∛27? 3
10 6/3 = ☐/18 36
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364. Week 13 Session 1
Mental Strategies Answers
Q Question Answer
1 3 + ☐ = 5 2
2 100 = 73 + ☐ 27
3 Halve 6 3
4 86 − 10 = ☐ 76
5 5 + ☐ = 10 5
6 123 = 40 + ☐ 83
7 365 − 357 = ☐ 8
8 9 × 3 = 27, so 27 ÷ 3 = ☐ 9
9 What is 22:44 in 12 hour clock format? 10:44 pm
10 From 02:35, how many minutes until 02:50? 15
365. Week 13 Session 1
Timestables Answers
Q Question Answer
1 ☐ × 7 = 70 10
2 ☐ × 2 = 12 6
3 ☐ ÷ 7 = 9 63
4 7 × 9 = ☐ 63
5 8 × 5 = ☐ 40
6 15 ÷ ☐ = 3 5
7 3 × 6 = ☐ 18
8 35 ÷ 5 = ☐ 7
9 8 ÷ ☐ = 4 2
10 3 × ☐ = 12 4
366. Week 13 Session 1
Key Skills Answers
Q Question Answer
1 424 × 56 = ☐ 23744
2 16277 − 9141 7136
3 7.6 × 3.6 27.36
4 3/4 as a decimal number 0.75
5 12.3 + 8.87 21.17
6 (−18) ÷ 3 −6
7
If a = 8 b = 10 and c = 6, what is the value
of c / (b − a) ?
3
8 (−8) − (−6) −2
9 What is the letter at (−2, 0)? K
10 What is 1/3 of 6? 2
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370. Week 13 Session 2
Mental Strategies Answers
Q Question Answer
1 ☐ + 2 = 5 3
2 79 + ☐ = 100 21
3 Halve 9 4.5
4 183 − 10 = ☐ 173
5 174 + ☐ = 180 6
6 65 = 40 + ☐ 25
7 5925 − 5917 = ☐ 8
8 8 × 3 = 24, so 24 ÷ 8 = ☐ 3
9 What is 8:32 pm in 24 hour clock format? 20:32
10 12:26 is how many minutes after 11:30? 56
371. Week 13 Session 2
Timestables Answers
Q Question Answer
1 ☐ × 6 = 60 10
2 ☐ ÷ 6 = 10 60
3 35 ÷ 7 = ☐ 5
4 ☐ ÷ 7 = 4 28
5 16 ÷ 8 = ☐ 2
6 5 × ☐ = 45 9
7 ☐ × 9 = 27 3
8 5 × ☐ = 15 3
9 2 × 6 = ☐ 12
10 ☐ × 7 = 21 3
372. Week 13 Session 2
Key Skills Answers
Q Question Answer
1 649 × 52 = ☐ 33748
2 1449 − 956 493
3 8.86 × 5.8 51.388
4 0.105 as a fraction 105/1000 (or 21/200)
5 6.72 + 91.79 98.51
6 12 ÷ (−3) −4
7
If a = 5 b = 4 and c = 2, what is the value of
√(a + b) ?
3
8 10 − (−7) 17
9 What is the letter at (−1, 1)? G
10 What is 5/6 of 18? 15
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376. Week 13 Session 3
Mental Strategies Answers
Q Question Answer
1 5 = 2 + ☐ 3
2 54 + ☐ = 100 46
3 What is half of 7? 3.5
4 11 − 10 = ☐ 1
5 47 + ☐ = 50 3
6 43 = 23 + ☐ 20
7 603 − 596 = ☐ 7
8 5 × 1 = 5, so 5 ÷ 1 = ☐ 5
9 What is 4:56 pm in 24 hour clock format? 16:56
10
What time will it be 19 minutes after 3:37
am?
3:56 am
377. Week 13 Session 3
Timestables Answers
Q Question Answer
1 10 × ☐ = 80 8
2 18 ÷ ☐ = 3 6
3 35 ÷ ☐ = 5 7
4 ☐ × 9 = 63 7
5 8 × 4 = ☐ 32
6 ☐ × 7 = 35 5
7 ☐ × 10 = 30 3
8 ☐ ÷ 5 = 9 45
9 ☐ ÷ 2 = 7 14
10 3 × 8 = ☐ 24
378. Week 13 Session 3
Key Skills Answers
Q Question Answer
1 316 × 75 = ☐ 23700
2 8113 − 8043 70
3 1.88 × 5.8 10.904
4 8/10 = ☐ % 80
5 25.07 + 8.26 33.33
6 (−5) ÷ (−1) 5
7
If a = 8 b = 4 and c = 1, what is the value of
3a – b2 ?
8
8 9 − (−1) 10
9 What is the letter at (−2, 2)? A
10 What is 2/3 of 9? 6
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382. Week 13 Session 4
Mental Strategies Answers
Q Question Answer
1 5 = 3 + ☐ 2
2 ☐ + 29 = 100 71
3 Halve 7 3.5
4 143 − 10 = ☐ 133
5 96 + ☐ = 100 4
6 141 = 81 + ☐ 60
7 2070 − 2061 = ☐ 9
8 3 × 4 = 12, so 12 ÷ 3 = ☐ 4
9 What is 4:12 pm in 24 hour clock format? 16:12
10
3:36 am is how many minutes after 2:43
am?
53
383. Week 13 Session 4
Timestables Answers
Q Question Answer
1 100 ÷ 10 = ☐ 10
2 48 ÷ ☐ = 8 6
3 7 × 8 = ☐ 56
4 ☐ × 4 = 28 7
5 72 ÷ ☐ = 9 8
6 40 ÷ 5 = ☐ 8
7 18 ÷ ☐ = 6 3
8 5 × ☐ = 25 5
9 2 × 6 = ☐ 12
10 12 ÷ 3 = ☐ 4
384. Week 13 Session 4
Key Skills Answers
Q Question Answer
1 93 × 994 = ☐ 92442
2 1201 − 841 360
3 6.9 × 9 62.1
4 1/4 as a decimal number 0.25
5 18.775 + 4.19 22.965
6 100 ÷ (−10) −10
7
If a = 5 b = 8 and c = 4 what is the value of
2a + b/c ?
12
8 (−1) − (−1) 0
9 What is the letter at (1, 2)? D
10 What is 3/5 of 35? 21
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388. Week 13 Session 5
Mental Strategies Answers
Q Question Answer
1 3 + ☐ = 5 2
2 ☐ + 63 = 100 37
3 Halve 2 1
4 40 − 10 = ☐ 30
5 27 + ☐ = 30 3
6 106 = 76 + ☐ 30
7 1588 − 1581 = ☐ 7
8 4 × 9 = 36, so 36 ÷ 9 = ☐ 4
9 What is 23:05 in 12 hour clock format? 11:05 pm
10
What time was it 51 minutes before 4:28
pm?
5:19 pm
389. Week 13 Session 5
Timestables Answers
Q Question Answer
1 40 ÷ ☐ = 4 10
2 54 ÷ 6 = ☐ 9
3 ☐ × 2 = 14 7
4 7 × 6 = ☐ 42
5 ☐ × 7 = 56 8
6 ☐ × 5 = 25 5
7 15 ÷ ☐ = 5 3
8 ☐ × 7 = 35 5
9 ☐ ÷ 2 = 9 18
10 3 × 9 = ☐ 27
390. Week 13 Session 5
Key Skills Answers
Q Question Answer
1 62 × 34 = ☐ 2108
2 9445 − 7651 1794
3 8.6 × 4.1 35.26
4 50% as a fraction 1/2
5 6.97 + 4.89 11.86
6 (−20) ÷ (−2) 10
7
If a = 7 b = 3 and c = 3, what is the value of
3b2 ?
27
8 (−4) − (−2) −2
9 What is the letter at (1, 0)? N
10 What is 9/10 of 30? 27
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394. Week 14 Session 1
Mental Strategies Answers
Q Question Answer
1 ☐ + 9 = 10 1
2 What is double 2? 4
3 Halve 55 27.5
4 42 + 30 = ☐ 72
5 97 + 96 = ☐ 193
6 17 + 11 = 17 + 3 + ☐ 8
7 48 − 12 = 48 − 8 − ☐ 4
8 296 − 288 = ☐ 8
9 5 + 843 = ☐ 848
10 84 + 34 = 84 + 30 + ☐ 4
395. Week 14 Session 1
Timestables Answers
Q Question Answer
1 ☐ × 4 = 16 4
2 5 × ☐ = 40 8
3 ☐ × 10 = 70 7
4 4 × ☐ = 32 8
5 48 ÷ ☐ = 6 8
6 12 ÷ ☐ = 6 2
7 30 ÷ 10 = ☐ 3
8 5 × 9 = ☐ 45
9 ☐ × 5 = 20 4
10 7 × ☐ = 56 8
396. Week 14 Session 1
Key Skills Answers
Q Question Answer
1 240 ÷ 8 = ☐ 30
2 3 + 8 ÷ 2 7
3 56.98 ÷ 7 8.14
4 10 × 0.21 2.1
5 98.76 − 96.78 1.98
6 Simplify 3/24 1/8
7 Which is the lowest number, 9 or −1? −1
8 List all the factors of 37 1, 37
9 What is the positive value of √9? 3
10 What is 120% of £220? £264
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400. Week 14 Session 2
Mental Strategies Answers
Q Question Answer
1 10 = 6 + ☐ 4
2 What is double 4? 8
3 What is half of 85? 42.5
4 129 + 50 = ☐ 179
5 88 + 90 = ☐ 178
6 8 + 9 = 8 + 2 + ☐ 7
7 74 − 9 = 74 − 4 − ☐ 5
8 928 − 924 = ☐ 4
9 7 + 260 = ☐ 267
10 28 + 56 = 20 + 50 + ☐ 14
401. Week 14 Session 2
Timestables Answers
Q Question Answer
1 8 ÷ ☐ = 2 4
2 50 ÷ ☐ = 10 5
3 14 ÷ ☐ = 2 7
4 ☐ ÷ 4 = 4 16
5 40 ÷ 8 = ☐ 5
6 6 ÷ 2 = ☐ 3
7 40 ÷ ☐ = 4 10
8 5 × 7 = ☐ 35
9 4 × ☐ = 28 7
10 7 × 6 = ☐ 42
402. Week 14 Session 2
Key Skills Answers
Q Question Answer
1 160 ÷ 5 = ☐ 32
2 1 × 9 − 1 8
3 3.94 ÷ 0.1 39.4
4 100 × 0.16 16
5 96.5 − 25.83 70.67
6 Write 2/4 in its simplest form 1/2
7 Which is the lowest number, −2 or −1? −2
8 Is 6 a factor of 21? No
9 What is the value of (−2) squared? 4
10 What is 110% of £400? £440
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406. Week 14 Session 3
Mental Strategies Answers
Q Question Answer
1 6 + ☐ = 10 4
2 What is double 6? 12
3 What is half of 27? 13.5
4 169 + 80 = ☐ 249
5 98 + 96 = ☐ 194
6 26 + 5 = 26 + 4 + ☐ 1
7 11 − 4 = 11 − 1 − ☐ 3
8 5137 − 5132 = ☐ 5
9 9 + 400 = ☐ 409
10 33 + 46 = 33 + 40 + ☐ 6
407. Week 14 Session 3
Timestables Answers
Q Question Answer
1 16 ÷ 4 = ☐ 4
2 10 ÷ 5 = ☐ 2
3 ☐ ÷ 7 = 9 63
4 4 × 3 = ☐ 12
5 24 ÷ ☐ = 3 8
6 16 ÷ ☐ = 8 2
7 10 × ☐ = 60 6
8 45 ÷ ☐ = 9 5
9 ☐ ÷ 4 = 5 20
10 7 × 6 = ☐ 42
408. Week 14 Session 3
Key Skills Answers
Q Question Answer
1 406 ÷ 7 = ☐ 58
2 6 + 6 ÷ 3 8
3 164.45 ÷ 5 32.89
4 1000 × 68.378 68378
5 98.98 − 86.06 12.92
6 Simplify 6/9 2/3
7 Difference between −4 and −1 3
8
What is the highest common factor of 22
and 30?
2
9 What is the value of 12 squared? 144
10 What is 95% of £190? £180.50
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412. Week 14 Session 4
Mental Strategies Answers
Q Question Answer
1 5 + ☐ = 10 5
2 What is double 4? 8
3 Halve 55 27.5
4 105 + 50 = ☐ 155
5 78 + 79 = ☐ 157
6 81 + 13 = 81 + 9 + ☐ 4
7 83 − 6 = 83 − 3 − ☐ 3
8 481 − 478 = ☐ 3
9 8 + 808 = ☐ 816
10 84 + 56 = 80 + 50 + ☐ 10
413. Week 14 Session 4
Timestables Answers
Q Question Answer
1 24 ÷ ☐ = 6 4
2 15 ÷ ☐ = 3 5
3 ☐ × 10 = 70 7
4 4 × 3 = ☐ 12
5 8 × 7 = ☐ 56
6 ☐ ÷ 2 = 4 8
7 ☐ ÷ 10 = 4 40
8 5 × ☐ = 15 3
9 4 × 8 = ☐ 32
10 ☐ × 5 = 35 7
414. Week 14 Session 4
Key Skills Answers
Q Question Answer
1 200 ÷ 8 = ☐ 25
2 10 ÷ 5 − 2 0
3 17.84 ÷ 0.5 35.68
4 0.58 × 100 58
5 83 − 5.69 77.31
6 Simplify 18/48 3/8
7 4 − 7 −3
8 List all the factors of 33 1, 3, 11, 33
9 What is the value of 12? 1
10 What is 5% of £150? £7.50
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418. Week 14 Session 5
Mental Strategies Answers
Q Question Answer
1 10 = ☐ + 3 7
2 What is double 5? 10
3 What is half of 69? 34.5
4 31 + 30 = ☐ 61
5 23 + 25 = ☐ 48
6 43 + 8 = 43 + 7 + ☐ 1
7 65 − 9 = 65 − 5 − ☐ 4
8 8881 − 8878 = ☐ 3
9 5 + 279 = ☐ 284
10 13 + 13 = 10 + 10 + ☐ 6
419. Week 14 Session 5
Timestables Answers
Q Question Answer
1 8 ÷ ☐ = 2 4
2 5 × 7 = ☐ 35
3 56 ÷ ☐ = 8 7
4 ☐ × 10 = 40 4
5 8 × ☐ = 56 7
6 14 ÷ ☐ = 7 2
7 10 × ☐ = 60 6
8 5 × ☐ = 35 7
9 ☐ × 2 = 8 16
10 ☐ × 10 = 70 7
420. Week 14 Session 5
Key Skills Answers
Q Question Answer
1 368 ÷ 8 = ☐ 46
2 7 × 1 + 1 8
3 3.18 ÷ 3 1.06
4 1000 × 3.05 3050
5 47.06 − 3.3 43.76
6 Write 6/12 in its simplest form 1/2
7 Which is the lowest number, −8 or −2? −8
8 List all the factors of 26 1, 2, 13, 26
9 What is the value of 13 squared? 169
10 What is 80% of £100? £80
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424. Week 15 Session 1
Mental Strategies Answers
Q Question Answer
1 20 = 17 + ☐ 3
2 What is double 90? 180
3 71 + 10 = ☐ 81
4 85 − 80 = ☐ 5
5 5 = 4 + ☐ 1
6 73 + 14 = 73 + 7 + ☐ 7
7 31 − 8 = 31 − 1 − ☐ 7
8 1 + 276 = ☐ 277
9 8 + 8 = ☐ × 8 2
10
Draw hands on the clock face showing 7:25
am
See clock above
425. Week 15 Session 1
Timestables Answers
Q Question Answer
1 9 × 3 = ☐ 27
2 ☐ × 3 = 24 8
3 63 ÷ 7 = ☐ 9
4 32 ÷ ☐ = 4 8
5 48 ÷ 6 = ☐ 8
6 ☐ ÷ 3 = 7 21
7 ☐ ÷ 8 = 9 72
8 ☐ × 10 = 80 8
9 24 ÷ 3 = ☐ 8
10 15 ÷ 3 = ☐ 5
426. Week 15 Session 1
Key Skills Answers
Q Question Answer
1 599 + 7063 7662
2 (5 − 2)2 + 1 × 4 13
3
Write 70323 in words. Use the opposite page for your
answer.
Seventy thousand, three
hundred and twenty three
4 2.6 ÷ 100 0.026
5 (−2) × 5 −10
6 Round 42.9673 to 2 decimal places 42.97
7 (−9) + (−4) −13
8
What is the lowest common multiple of 3
and 5?
15
9 What is the cube root of 27? 3
10 1/8 = ☐/24 3
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430. Week 15 Session 2
Mental Strategies Answers
Q Question Answer
1 20 = 3 + ☐ 17
2 What is double 48? 96
3 36 + 10 = ☐ 46
4 39 − 20 = ☐ 19
5 6 = 2 + ☐ 4
6 5 + 7 = 5 + 5 + ☐ 2
7 65 − 9 = 65 − 5 − ☐ 4
8 3 + 307 = ☐ 310
9 7 + 7 = ☐ × 7 2
10 What time is shown on the clock? 3:50 am
431. Week 15 Session 2
Timestables Answers
Q Question Answer
1 9 × ☐ = 54 6
2 ☐ ÷ 8 = 5 40
3 70 ÷ 7 = ☐ 10
4 ☐ ÷ 8 = 9 72
5 6 × ☐ = 12 2
6 ☐ × 8 = 24 3
7 ☐ ÷ 8 = 6 48
8 ☐ × 3 = 24 8
9 3 × 10 = ☐ 30
10 3 × ☐ = 15 5
432. Week 15 Session 2
Key Skills Answers
Q Question Answer
1 211 + 2268 2479
2 42 + 3 × 4 54
3
Write 56980 in words. Use the opposite
page for your answer.
Fifty six thousand,
nine hundred and
eighty
4 5.13 ÷ 100 0.0513
5 (−1) × 7 −7
6 Round 11.5775 to 1 decimal place 11.6
7 (−7) + (−10) −17
8 Is 42 a multiple of 5? No
9 What is the value of (−2) cubed? −8
10 1/6 = 8/☐ 48
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436. Week 15 Session 3
Mental Strategies Answers
Q Question Answer
1 ☐ + 6 = 20 14
2 Double 72 144
3 192 + 10 = ☐ 202
4 91 − 50 = ☐ 41
5 4 = 1 + ☐ 3
6 74 + 10 = 74 + 6 + ☐ 4
7 77 − 13 = 77 − 7 − ☐ 6
8 5 + 760 = ☐ 765
9 9 + 9 + 9 + 9 + 9 = ☐ × 9 5
10 What time is shown on the clock? 1:35 pm
437. Week 15 Session 3
Timestables Answers
Q Question Answer
1 36 ÷ 9 = ☐ 4
2 8 × 4 = ☐ 32
3 ☐ ÷ 7 = 5 35
4 8 × ☐ = 24 3
5 6 × ☐ = 18 3
6 3 × 2 = ☐ 6
7 80 ÷ ☐ = 10 8
8 ☐ × 6 = 48 8
9 ☐ × 2 = 6 3
10 3 × ☐ = 21 7
438. Week 15 Session 3
Key Skills Answers
Q Question Answer
1 866 + 1459 2325
2 (10 + 8) × 3 54
3
Write 11641013 in words. Use the opposite
page for your answer.
Eleven million, six
hundred and forty one
thousand and thirteen
4 76.4 ÷ 10 7.64
5 (−10) × 4 −40
6 Round 5.0393 to 1 decimal place 5.0
7 9 + (−7) 2
8 List the first 4 multiples of 4 4, 8, 12, 16
9 What is the value of 43? 64
10 9/6 = 81/☐ 54
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442. Week 15 Session 4
Mental Strategies Answers
Q Question Answer
1 ☐ + 11 = 20 9
2 What is double 30? 60
3 91 + 10 = ☐ 101
4 101 − 90 = ☐ 11
5 9 = 2 + ☐ 7
6 77 + 10 = 77 + 3 + ☐ 7
7 57 − 11 = 57 − 7 − ☐ 4
8 5 + 864 = ☐ 869
9 8 + 8 + 8 + 8 = ☐ × 8 4
10
Draw hands on the clock face showing 7:50
am
See clock above
443. Week 15 Session 4
Timestables Answers
Q Question Answer
1 ☐ × 9 = 81 9
2 ☐ ÷ 8 = 8 64
3 7 × 8 = ☐ 56
4 80 ÷ 8 = ☐ 10
5 24 ÷ 6 = ☐ 4
6 3 × 3 = ☐ 9
7 ☐ × 3 = 24 8
8 32 ÷ 8 = ☐ 4
9 15 ÷ 3 = ☐ 5
10 3 × ☐ = 6 2
444. Week 15 Session 4
Key Skills Answers
Q Question Answer
1 927 + 5601 6528
2 √36 + 12 ÷ 2 12
3
Write Three Hundred and Ninety Thousand, Eight
Hundred and Eighty Two in digits 390882
4 498.8 ÷ 100 4.988
5 (−7) × (−4) 28
6 Round 58.8587 to 1 decimal place 58.9
7 5 + (−5) 0
8
What is the lowest common multiple of 7
and 8?
56
9 What is the value of (−10) cubed? −1000
10 10/2 = ☐/14 70
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448. Week 15 Session 5
Mental Strategies Answers
Q Question Answer
1 3 + ☐ = 20 17
2 Double 41 82
3 60 + 10 = ☐ 70
4 75 − 30 = ☐ 45
5 9 = 3 + ☐ 6
6 21 + 16 = 21 + 9 + ☐ 7
7 82 − 4 = 82 − 2 − ☐ 2
8 6 + 968 = ☐ 974
9 9 + 9 = ☐ × 9 2
10 What time is shown on the clock? 10:10 pm
449. Week 15 Session 5
Timestables Answers
Q Question Answer
1 36 ÷ 9 = ☐ 4
2 56 ÷ 8 = ☐ 7
3 7 × 6 = ☐ 42
4 8 × 2 = ☐ 16
5 36 ÷ 6 = ☐ 6
6 ☐ ÷ 3 = 10 30
7 ☐ × 4 = 32 8
8 8 × 4 = ☐ 32
9 ☐ × 4 = 12 3
10 12 ÷ 3 = ☐ 4
450. Week 15 Session 5
Key Skills Answers
Q Question Answer
1 820 + 2309 3129
2 (15 − 3) ÷ 6 2
3
Write 54481 in words. Use the opposite
page for your answer.
Fifty four thousand, four
hundred and eighty one
4 29.7 ÷ 10 2.97
5 (−2) × (−10) 20
6 Round 74.8937 to 2 decimal places 74.89
7 8 + (−5) 3
8 Is 38 a multiple of 9? No
9 What is the value of ∛125? 5
10 3/4 = ☐/28 21
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454. Week 16 Session 1
Mental Strategies Answers
Q Question Answer
1 5 = ☐ + 4 1
2 100 = ☐ + 62 38
3 What is half of 4? 2
4 190 − 10 = ☐ 180
5 44 + ☐ = 50 6
6 161 = 140 + ☐ 21
7 593 − 587 = ☐ 6
8 4 × 7 = 28, so 28 ÷ 7 = ☐ 4
9 What is 8:45 pm in 24 hour clock format? 20:45
10
4:42 am is how many minutes after 4:24
am?
18
455. Week 16 Session 1
Timestables Answers
Q Question Answer
1 ☐ × 7 = 42 6
2 ☐ ÷ 8 = 3 24
3 81 ÷ ☐ = 9 9
4 ☐ ÷ 4 = 7 28
5 18 ÷ ☐ = 6 3
6 35 ÷ 7 = ☐ 5
7 8 × ☐ = 80 10
8 5 × 9 = ☐ 45
9 64 ÷ 8 = ☐ 8
10 10 × 10 = ☐ 100
456. Week 16 Session 1
Key Skills Answers
Q Question Answer
1 68 × 37 2516
2 12610 − 7906 4704
3 8.6 × 1.09 9.374
4 6/10 as a decimal number 0.6
5 8.043 + 6.96 15.003
6 (−54) ÷ (−9) 6
7
If a = 6 b = 3 and c = 5, what is the value of
5a − bc ?
15
8 Round 8635 to 2 s.f. 8600
9 What is the letter at (0, −1)? S
10 What is 2/5 of 35? 14
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460. Week 16 Session 2
Mental Strategies Answers
Q Question Answer
1 5 = 3 + ☐ 2
2 ☐ + 93 = 100 7
3 What is half of 3? 1.5
4 55 − 10 = ☐ 45
5 96 + ☐ = 100 4
6 158 = 58 + ☐ 100
7 799 − 795 = ☐ 4
8 7 × 9 = 63, so 63 ÷ 9 = ☐ 7
9 What is 4:33 pm in 24 hour clock format? 16:33
10 13:28 is how many minutes after 13:11? 17
461. Week 16 Session 2
Timestables Answers
Q Question Answer
1 6 × ☐ = 54 9
2 8 × 8 = ☐ 64
3 36 ÷ 9 = ☐ 4
4 ☐ × 8 = 32 4
5 ☐ ÷ 3 = 9 27
6 7 × ☐ = 28 4
7 8 × 8 = ☐ 64
8 ☐ × 8 = 40 5
9 24 ÷ 8 = ☐ 3
10 10 × 10 = ☐ 100
462. Week 16 Session 2
Key Skills Answers
Q Question Answer
1 89 × 52 = ☐ 4628
2 11371 − 7323 4048
3 4.5 × 3.7 16.65
4 3/4 = ☐ % 75
5 45.73 + 2.43 48.16
6 (−1) ÷ 1 −1
7
If a = 2 b = 2 and c = 1, what is the value of
√(a + b) ?
2
8 Round 758 to 2 s.f. 760
9 What is the letter at (1, 1)? I
10 What is 3/7 of 14? 6
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